21000957 is an odd 8-digits composite number following 21000956
and preceding 21000958 . In scientific notation, it is written as 2.1000957 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 13957680 positive integers (up to 21000957) that are relatively prime to 21000957.
21000957 has 8 divisors, whose sum is 28087200
The reverse of 21000957 is 75900012
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million nine hundred fifty-seven
Scientific notation
2.1000957 × 10^7
Engineering notation
2.1000957 × 10^6
Prime Factorization
3 × 331 × 21149
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21000957
Product of the distinct prime numbers
The prime factorization of 21000957 is 3 × 331 × 21149.
Since it has a total of 3 prime factors.
6 , 9 , 8 , 2 , 802 , 774 , 4155 , 1939 , 52320 , 48784 , 853791 , 204323 , 6525295 , 7835763 , 34648022 , 6155108 , 726606411 , 81294236 , 9512242667 , 9486659448
n×2
42001914
n×3
63002871
n×4
84003828
n×5
105004785
n÷2
10500478.5
n÷3
7000319
n÷3
5250239.25
n÷5
4200191.4
n2
441040194915849
n3
9.2622661686994E+21
n4
1.9451645353141E+29
n5
4.0850316764056E+36
2 √n
4582.6801110267
3 √n
275.89660851165
4 √n
67.695495500267
5 √n
29.137200143268
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000956
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000957 can be divided by 8 positive divisors.
The sum of these divisors (counting 21000957) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001011111101
3
Ternary
1110111221220020
4
Quaternary
1100013023331
5
Quinary
20334012312
6
Senary
2030042353
8
Octal
120071375
10
Decimal
21000957
12
Duodecimal
70493b9
16
Hexadecimal
14072fd
20
Vigesimal
6b527h
36
Base36
ci4fx
md5
67291b14f9f22f15df620d38b0d4b0c1
sha1
79e57c50ae914373000e64d8dbf03d1f05277981
sha256
1a11e42cf5d53576a4bd01f3136fa2ac52855abbe5c75293067e25c10746a842
sha512
c6e2eb20278fc00609c5c2231ab930704cf0d722bfd418cd11ce4029b76592271a25585f6e14f04ca60cc8a3840cda119365ededd538dd0438a40923164a81ae
ripemd-160
42bb1a76aed18c582305590031f901281050fc8d
Diameter
42001914
Circumference
131952904.45911
Area
1.3855686362854E+15
Volume
3.8797689801572E+22
Surface area
5.5422745451418E+15
Circumference
131952904.45911
Perimeter
84003828
Area
441040194915849
Diagonal
29699838.212214
Surface area
2646241169495094
Volume
9.2622661686994E+21
Space diagonal
36374724.531569
Perimeter
63002871
Area
1.9097600644358E+14
Altitude
18187362.265785
Surface area
1.9097600644358E+14
Volume
1.0915685361737E+21
Height
9899946.0707381