21231255 is an odd 8-digits composite number following 21231254
and preceding 21231256 . In scientific notation, it is written as 2.1231255 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 11299968 positive integers (up to 21231255) that are relatively prime to 21231255.
21231255 has 8 divisors, whose sum is 22693440
The reverse of 21231255 is 55213212
Previous prime number is 2309
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million two hundred thirty-one thousand two hundred fifty-five
Scientific notation
2.1231255 × 10^7
Engineering notation
2.1231255 × 10^6
Prime Factorization
15 × 2309 × 613
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21231255
Product of the distinct prime numbers
The prime factorization of 21231255 is 15 × 2309 × 613.
Since it has a total of 3 prime factors.
8 , 2 , 39 , 42 , 994 , 847 , 5782 , 9300 , 72969 , 6439 , 26187 , 696606 , 3826740 , 1091898 , 80707874 , 20703268 , 944325105 , 750053640 , 7339035444 , 4294481074
n×2
42462510
n×3
63693765
n×4
84925020
n×5
106156275
n÷2
10615627.5
n÷3
7077085
n÷3
5307813.75
n÷5
4246251
n2
450766188875025
n3
9.5703319013838E+21
n4
2.0319015703291E+29
n5
4.3139820374559E+36
2 √n
4607.7385993565
3 √n
276.90144503985
4 √n
67.880325569023
5 √n
29.200825787804
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21231254
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21231255 can be divided by 8 positive divisors.
The sum of these divisors (counting 21231255) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000111111011010010111
3
Ternary
1110221122210210
4
Quaternary
1100333122113
5
Quinary
20413400010
6
Senary
2035020503
8
Octal
120773227
10
Decimal
21231255
12
Duodecimal
713a733
16
Hexadecimal
143f697
20
Vigesimal
6cdi2f
36
Base36
cn253
md5
1245b05da59216954d55944f17ee4440
sha1
7f1bc7ad40497a05bff0523bd7e3b93939ca480e
sha256
ce1945e608eaa6eb086f2029c6ceeb10fdf4c1e763e21c07f76ed5e95bb5f781
sha512
404ffd00dd3053446bd355baa8e3fa41cc29a439b4334af910946e3d016fe4b75d39fdeae4de5c0817e7bf27f273e88064e8e2475545ea30c349adea0d46fa13
ripemd-160
95fd453f3aabf37bb7c8be3f0ae63e1bad1b7653
Diameter
42462510
Circumference
133399909.46898
Area
1.4161237474564E+15
Volume
4.0088112525071E+22
Surface area
5.6644949898258E+15
Circumference
133399909.46898
Perimeter
84925020
Area
450766188875025
Diagonal
30025528.767202
Surface area
2704597133250150
Volume
9.5703319013838E+21
Space diagonal
36773612.368451
Perimeter
63693765
Area
1.9518748536643E+14
Altitude
18386806.184225
Surface area
1.9518748536643E+14
Volume
1.1278744309457E+21
Height
10008509.589067