21497929 is an odd 8-digits prime number following 21497928
and preceding 21497930 . In scientific notation, it is written as 2.1497929 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 21497928 positive integers (up to 21497929) that are relatively prime to 21497929.
21497929 has 2 divisors, whose sum is 21497930
The reverse of 21497929 is 92979412
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
twenty-one million four hundred ninety-seven thousand nine hundred twenty-nine
Scientific notation
2.1497929 × 10^7
Engineering notation
2.1497929 × 10^6
Prime Factorization
21497929
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21497929 Product of the distinct prime numbers
The prime factorization of 21497929 is 21497929.
Since it has a total of 1 prime factors.
7 , 8 , 49 , 10 , 373 , 275 , 9211 , 8633 , 59720 , 32436 , 650096 , 130274 , 1061533 , 5013645 , 92130393 , 53727474 , 689713594 , 38749721 , 8323479530 , 9052634342
n×2
42995858
n×3
64493787
n×4
85991716
n×5
107489645
n÷2
10748964.5
n÷3
7165976.3333333
n÷3
5374482.25
n÷5
4299585.8
n2
462160951289041
n3
9.9355033173843E+21
n4
2.1359274489639E+29
n5
4.5918016646977E+36
2 √n4636.5859206964
3 √n278.05595978536
4 √n68.092480647252
5 √n29.273815062488
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21497930 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10748965 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4636.5860285344 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999069678 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21497929 can be divided by 2 positive divisors.
The sum of these divisors (counting 21497929) is 21497930, the average is 10748965.
Base
System
Value
2
Binary
1010010000000100001001001
3
Ternary
1111110012121121
4
Quaternary
1102000201021
5
Quinary
21000413204
6
Senary
2044435241
8
Octal
122004111
10
Decimal
21497929
12
Duodecimal
7248b21
16
Hexadecimal
1480849
20
Vigesimal
6e74g9
36
Base36
csrwp
md5
de3db79694d757acfe3f11d9313139d0
sha1
eeb7b8a9b1886908ed2fd81c66d110309b160ef6
sha256
0b7d768900440c3e69435aaf61581a1fd3a3f7f3df0781ff11f51782eedc01cd
sha512
632795296b4a4bf2dbaee753d998f918ae44b3045c844ccf2e4102c2dc73c844e4e8b7f1d83da6461c91876585c5f19493aa14de1ed1e4e030d0dccdc2d65140
ripemd-160
e0d06f8f5413cc087692ce5fe460e5111e67f6b8
Diameter
42995858
Circumference
135075471.62759
Area
1.4519214493457E+15
Volume
4.1617738975482E+22
Surface area
5.8076857973829E+15
Circumference
135075471.62759
Perimeter
85991716
Area
462160951289041
Diagonal
30402662.754734
Surface area
2772965707734246
Volume
9.9355033173843E+21
Space diagonal
37235505.285508
Perimeter
64493787
Area
2.0012156222675E+14
Altitude
18617752.642754
Surface area
2.0012156222675E+14
Volume
1.1709102950373E+21
Height
10134220.918245