10
Updated: 12/11/2025, 5:04:34 PM Wikipedia source
10 (ten) is the even natural number following 9 and preceding 11. Ten is the base of the decimal numeral system, the most common system of denoting numbers in both spoken and written language. The number "ten" originates from the Proto-Germanic root "*tehun", which in turn comes from the Proto-Indo-European root "*dekm-", meaning "ten". This root is the source of similar words for "ten" in many other Germanic languages, like Dutch, German, and Swedish. The use of "ten" in the decimal system is likely because humans have ten fingers and ten toes, which people may have used to count by.
Infobox
← 9 10 11 →
← 9
Cardinal
ten
Ordinal
10th(tenth)
Numeral system
decimal
Factorization
2 × 5
Divisors
1, 2, 5, 10
Greek numeral
Ι´
Roman numeral
mw- X, x
Roman numeral (unicode)
X, x
Greek prefix
deca-/deka-
Latin prefix
deci-
Binary
10102
Ternary
1013
Senary
146
Octal
128
Duodecimal
A12
Hexadecimal
A16
Chinese numeral
十，拾
Hebrew
י (Yod)
Khmer
១០
Armenian
Ժ
Tamil
௰
Thai
๑๐
Devanāgarī
१०
Santali
᱑᱐
Bengali
১০
Arabic & Kurdish & Iranian
١٠
Malayalam
൰
Egyptian hieroglyph
𓎆
Babylonian numeral
𒌋
Tables
· Mathematics › List of basic calculations
10 × x
10 × x
Multiplication
10 × x
1
10
2
20
3
30
4
40
5
50
6
60
7
70
8
80
9
90
10
100
11
110
12
120
13
130
14
140
15
150
16
160
20
200
25
250
50
500
100
1000
1000
10000
| Multiplication | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 20 | 25 | 50 | 100 | 1000 |
| 10 × x | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 | 200 | 250 | 500 | 1000 | 10000 |
· Mathematics › List of basic calculations
10 ÷ x
10 ÷ x
Division
10 ÷ x
1
10
2
5
3
3.3
4
2.5
5
2
6
1.6
7
1.428571
8
1.25
9
1.1
10
1
11
0.90
12
0.83
13
0.769230
14
0.714285
15
0.6
x ÷ 10
x ÷ 10
Division
x ÷ 10
1
0.1
2
0.2
3
0.3
4
0.4
5
0.5
6
0.6
7
0.7
8
0.8
9
0.9
10
1
11
1.1
12
1.2
13
1.3
14
1.4
15
1.5
| Division | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 10 ÷ x | 10 | 5 | 3.3 | 2.5 | 2 | 1.6 | 1.428571 | 1.25 | 1.1 | 1 | 0.90 | 0.83 | 0.769230 | 0.714285 | 0.6 |
| x ÷ 10 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 | 1.1 | 1.2 | 1.3 | 1.4 | 1.5 |
· Mathematics › List of basic calculations
10x
10x
Exponentiation
10x
1
10
2
100
3
1000
4
10000
5
100000
6
1000000
7
10000000
8
100000000
9
1000000000
10
10000000000
x10
x10
Exponentiation
x10
1
1
2
1024
3
59049
4
1048576
5
9765625
6
60466176
7
282475249
8
1073741824
9
3486784401
10
10000000000
| Exponentiation | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 10x | 10 | 100 | 1000 | 10000 | 100000 | 1000000 | 10000000 | 100000000 | 1000000000 | 10000000000 |
| x10 | 1 | 1024 | 59049 | 1048576 | 9765625 | 60466176 | 282475249 | 1073741824 | 3486784401 | 10000000000 |
References
- mathworld.wolfram.comhttps://mathworld.wolfram.com/HappyNumber.html#:~:text=The%20first%20few%20happy%20numbers,97,%20100,%20...
- The On-Line Encyclopedia of Integer Sequenceshttps://oeis.org/A005278