21056908 is an even 8-digits composite number following 21056907
and preceding 21056909 . In scientific notation, it is written as 2.1056908 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 10426032 positive integers (up to 21056908) that are relatively prime to 21056908.
21056908 has 12 divisors, whose sum is 37208080
The reverse of 21056908 is 80965012
Previous prime number is 103
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million fifty-six thousand nine hundred eight
Scientific notation
2.1056908 × 10^7
Engineering notation
2.1056908 × 10^6
Prime Factorization
2 × 2 × 103 × 51109
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10528454
Product of the distinct prime numbers
The prime factorization of 21056908 is 2 × 2 × 103 × 51109.
Since it has a total of 4 prime factors.
5 , 2 , 36 , 86 , 247 , 502 , 5313 , 9979 , 15928 , 69120 , 60187 , 469530 , 7181075 , 7193449 , 80532166 , 1186000 , 934534939 , 910940230 , 3566753999 , 2904938732
n×2
42113816
n×3
63170724
n×4
84227632
n×5
105284540
n÷2
10528454
n÷3
7018969.3333333
n÷3
5264227
n÷5
4211381.6
n2
443393374520464
n3
9.336493495087E+21
n4
1.9659768456864E+29
n5
4.139739356975E+36
2 √n
4588.7806659286
3 √n
276.14140691973
4 √n
67.740539309402
5 √n
29.152709159536
1 , 2 , 4 , 103 , 206 , 412 , 51109 , 102218 , 204436 , 5264227 , 10528454 , 21056908
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21056907
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21056908 can be divided by 12 positive divisors.
The sum of these divisors (counting 21056908) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000010100110110001100
3
Ternary
1110121210122111
4
Quaternary
1100110312030
5
Quinary
20342310113
6
Senary
2031153404
8
Octal
120246614
10
Decimal
21056908
12
Duodecimal
7075864
16
Hexadecimal
1414d8c
20
Vigesimal
6bc258
36
Base36
cjbm4
md5
31beb67c37411e4549248063fb2a75c7
sha1
12c191a8037da014ef81a4e120553224a759b538
sha256
6f06656e007923234c5ef4bce54e222f4a8bf53cd325b18d123a95734458af95
sha512
add96d0d2d7057389d91cc41dc0c44034ce40b7b8cb75dc0e205a664d68091fd82afa720e3791b30ac286ad3acd9d49e36ebf2b141288fc1be990b4cb372548d
ripemd-160
76f2ada9c32e209eb4d8915f17126c986953adc2
Diameter
42113816
Circumference
132304454.96023
Area
1.3929613680439E+15
Volume
3.9108612499272E+22
Surface area
5.5718454721755E+15
Circumference
132304454.96023
Perimeter
84227632
Area
443393374520464
Diagonal
29778964.875243
Surface area
2660360247122784
Volume
9.336493495087E+21
Space diagonal
36471634.506304
Perimeter
63170724
Area
1.9199496310221E+14
Altitude
18235817.253152
Surface area
1.9199496310221E+14
Volume
1.10031631048E+21
Height
9926321.6250808