21931432 is an even 8-digits composite number following 21931431
and preceding 21931433 . In scientific notation, it is written as 2.1931432 × 10^7.
The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors.
There are 10950960 positive integers (up to 21931432) that are relatively prime to 21931432.
21931432 has 16 divisors, whose sum is 41176800
The reverse of 21931432 is 23413912
Previous prime number is 1031
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million nine hundred thirty-one thousand four hundred thirty-two
Scientific notation
2.1931432 × 10^7
Engineering notation
2.1931432 × 10^6
Prime Factorization
2 × 2 × 2 × 1031 × 2659
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5482858
Product of the distinct prime numbers
The prime factorization of 21931432 is 2 × 2 × 2 × 1031 × 2659.
Since it has a total of 5 prime factors.
1 , 7 , 86 , 46 , 435 , 390 , 7127 , 6526 , 44867 , 5488 , 565762 , 998334 , 3248195 , 4130544 , 64213773 , 86499795 , 18418935 , 777181723 , 3871734511 , 1616538636
n×2
43862864
n×3
65794296
n×4
87725728
n×5
109657160
n÷2
10965716
n÷3
7310477.3333333
n÷3
5482858
n÷5
4386286.4
n2
480987709570624
n3
1.0548749245284E+22
n4
2.3134917675799E+29
n5
5.0738187383239E+36
2 √n
4683.1006822403
3 √n
279.91252369431
4 √n
68.433184072059
5 √n
29.390934703773
1 , 2 , 4 , 8 , 1031 , 2062 , 2659 , 4124 , 5318 , 8248 , 10636 , 21272 , 2741429 , 5482858 , 10965716 , 21931432
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21931431
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21931432 can be divided by 16 positive divisors.
The sum of these divisors (counting 21931432) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011101010010110101000
3
Ternary
1112021020021021
4
Quaternary
1103222112220
5
Quinary
21103301212
6
Senary
2102022224
8
Octal
123522650
10
Decimal
21931432
12
Duodecimal
7417974
16
Hexadecimal
14ea5a8
20
Vigesimal
6h18bc
36
Base36
d22eg
md5
f428a2dd7260f3b3cd273992e867175b
sha1
109422fe479563b0d75ecc6bb35ec2c1a04b09dc
sha256
6d05dec66a3eb6f882886916ddd457176ee34eacdb07a789e27b27d8c7aec836
sha512
c568ec4a8aad9c6ed6449d39344fb763c1c471f0282e169416e904fbcf18446ae44320e3a4cfc0e5ced45c6db2e820dd352be5e072b609f9cd21af300f68b086
ripemd-160
9a11fc21c020b332be2fb162af0406d2c482b2a1
Diameter
43862864
Circumference
137799251.30781
Area
1.5110674548541E+15
Volume
4.4186497511393E+22
Surface area
6.0442698194162E+15
Circumference
137799251.30781
Perimeter
87725728
Area
480987709570624
Diagonal
31015728.576663
Surface area
2885926257423744
Volume
1.0548749245284E+22
Space diagonal
37986354.506742
Perimeter
65794296
Area
2.0827378769813E+14
Altitude
18993177.253371
Surface area
2.0827378769813E+14
Volume
1.2431820207295E+21
Height
10338576.192221