21508973 is an odd 8-digits prime number following 21508972
and preceding 21508974 . In scientific notation, it is written as 2.1508973 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21508972 positive integers (up to 21508973) that are relatively prime to 21508973.
21508973 has 2 divisors, whose sum is 21508974
The reverse of 21508973 is 37980512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred eight thousand nine hundred seventy-three
Scientific notation
2.1508973 × 10^7
Engineering notation
2.1508973 × 10^6
Prime Factorization
21508973
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21508973
Product of the distinct prime numbers
The prime factorization of 21508973 is 21508973.
Since it has a total of 1 prime factors.
2 , 8 , 70 , 36 , 770 , 597 , 4369 , 3392 , 85124 , 34798 , 212153 , 513220 , 7250392 , 7805775 , 87953754 , 46343648 , 389821371 , 588791766 , 5380238331 , 4055583634
n×2
43017946
n×3
64526919
n×4
86035892
n×5
107544865
n÷2
10754486.5
n÷3
7169657.6666667
n÷3
5377243.25
n÷5
4301794.6
n2
462635919514729
n3
9.9508235016725E+21
n4
2.1403199402524E+29
n5
4.603608380625E+36
2 √n
4637.7767302879
3 √n
278.10356629843
4 √n
68.101224146765
5 √n
29.276822176329
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21508974
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10754487
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4637.7768380982
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999070156
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21508973 can be divided by 2 positive divisors.
The sum of these divisors (counting 21508973) is 21508974, the average is 10754487.
Base
System
Value
2
Binary
1010010000011001101101101
3
Ternary
1111110202202122
4
Quaternary
1102003031231
5
Quinary
21001241343
6
Senary
2045002325
8
Octal
122031555
10
Decimal
21508973
12
Duodecimal
72533a5
16
Hexadecimal
148336d
20
Vigesimal
6e8c8d
36
Base36
ct0fh
md5
b7b81e9c2308aadea46fe1ed04d6b82e
sha1
524ac8243cc1b6fb6e3d13aee1e01f74a5336ebe
sha256
783e6c95b368d8a4542b00bebab1f9fbd03a3eec1a685444c0371652815166ca
sha512
1bbc9fbb7dccffcc101e41054a3e6a2250b0476bb1a8833bed804c24db1df1e9cd7fa59c0dda35766208040c7922c9c9f8cfb5eb0825525e88d3024f405de36c
ripemd-160
3ed02901521563de7f915cc728e092659d85740e
Diameter
43017946
Circumference
135144863.12612
Area
1.4534136060342E+15
Volume
4.1681912013364E+22
Surface area
5.8136544241369E+15
Circumference
135144863.12612
Perimeter
86035892
Area
462635919514729
Diagonal
30418281.329317
Surface area
2775815517088374
Volume
9.9508235016725E+21
Space diagonal
37254634.054627
Perimeter
64526919
Area
2.0032722950146E+14
Altitude
18627317.027314
Surface area
2.0032722950146E+14
Volume
1.1727157960705E+21
Height
10139427.109772