21371731 is an odd 8-digits composite number following 21371730
and preceding 21371732 . In scientific notation, it is written as 2.1371731 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20874672 positive integers (up to 21371731) that are relatively prime to 21371731.
21371731 has 4 divisors, whose sum is 21868792
The reverse of 21371731 is 13717312
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million three hundred seventy-one thousand seven hundred thirty-one
Scientific notation
2.1371731 × 10^7
Engineering notation
2.1371731 × 10^6
Prime Factorization
43 × 497017
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21371731
Product of the distinct prime numbers
The prime factorization of 21371731 is 43 × 497017.
Since it has a total of 2 prime factors.
6 , 2 , 46 , 32 , 948 , 237 , 5455 , 3410 , 42824 , 57663 , 702929 , 469544 , 5996712 , 8315662 , 53140604 , 66971960 , 983533699 , 697668785 , 2598846066 , 294471127
n×2
42743462
n×3
64115193
n×4
85486924
n×5
106858655
n÷2
10685865.5
n÷3
7123910.3333333
n÷3
5342932.75
n÷5
4274346.2
n2
456750885936361
n3
9.7615570682436E+21
n4
2.0862137180365E+29
n5
4.4585998390386E+36
2 √n
4622.9569541582
3 √n
277.5108066024
4 √n
67.992330112728
5 √n
29.239365212402
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21371730
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21371731 can be divided by 4 positive divisors.
The sum of these divisors (counting 21371731) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100001101101010011
3
Ternary
1111012210111121
4
Quaternary
1101201231103
5
Quinary
20432343411
6
Senary
2042023111
8
Octal
121415523
10
Decimal
21371731
12
Duodecimal
71a7a97
16
Hexadecimal
1461b53
20
Vigesimal
6db96b
36
Base36
cq2j7
md5
819e78b3b17e1a5e71668e0f722c4698
sha1
6aec0b1ac7c86beca6dd25677eea1442f5c2774c
sha256
0892eaa692ff82ab8374eb8de25e3ff84aedfa96569fdd1de1d896c35463d2f0
sha512
882ea62ea161a1c8ae0fc7c6933d856cdbc1bdf43c2c0177ce37512409d1dcff9926d94711f56bc816e380cb9e3ed82ea877627a30208fbe8d50324b8dfaeee4
ripemd-160
694e495a321d7b7af5eb0261b1660380263bb9aa
Diameter
42743462
Circumference
134282546.20819
Area
1.4349252277783E+15
Volume
4.0889114630922E+22
Surface area
5.7397009111132E+15
Circumference
134282546.20819
Perimeter
85486924
Area
456750885936361
Diagonal
30224191.83159
Surface area
2740505315618166
Volume
9.7615570682436E+21
Space diagonal
37016923.937695
Perimeter
64115193
Area
1.9777893521097E+14
Altitude
18508461.968847
Surface area
1.9777893521097E+14
Volume
1.1504105329824E+21
Height
10074730.61053