21261657 is an odd 8-digits composite number following 21261656
and preceding 21261658 . In scientific notation, it is written as 2.1261657 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13828640 positive integers (up to 21261657) that are relatively prime to 21261657.
21261657 has 8 divisors, whose sum is 29040480
The reverse of 21261657 is 75616212
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million two hundred sixty-one thousand six hundred fifty-seven
Scientific notation
2.1261657 × 10^7
Engineering notation
2.1261657 × 10^6
Prime Factorization
3 × 41 × 172859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21261657
Product of the distinct prime numbers
The prime factorization of 21261657 is 3 × 41 × 172859.
Since it has a total of 3 prime factors.
4 , 9 , 46 , 78 , 382 , 674 , 1681 , 112 , 27261 , 5545 , 78225 , 275232 , 8891075 , 3775810 , 32196775 , 48051177 , 459176615 , 291782921 , 4569489288 , 3386159341
n×2
42523314
n×3
63784971
n×4
85046628
n×5
106308285
n÷2
10630828.5
n÷3
7087219
n÷3
5315414.25
n÷5
4252331.4
n2
452058058385649
n3
9.6115033814816E+21
n4
2.043564881514E+29
n5
4.3449575567997E+36
2 √n
4611.0364344689
3 √n
277.03355126274
4 √n
67.904612762823
5 √n
29.209183800087
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
-21261656
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 21261657 can be divided by 8 positive divisors.
The sum of these divisors (counting 21261657) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001000110110101011001
3
Ternary
1111000012111210
4
Quaternary
1101012311121
5
Quinary
20420333112
6
Senary
2035413333
8
Octal
121066531
10
Decimal
21261657
12
Duodecimal
7154249
16
Hexadecimal
1446d59
20
Vigesimal
6che2h
36
Base36
cnpll
md5
0448427cdd2973396a6128b1b8e83a6b
sha1
c74f4034a9389c8fb3ecc87a6d9b0455154cf2d9
sha256
26850637e375a2796df6e8f343f04e3352d5d50d5a204a598aa85593e93e63c3
sha512
3ee3a0b3d09ecbec99697a31a86c8128568534bdf22c4f9b4a6801ee735796502881b0cc505ac48fc70ae47b1b4527b282d98ca87c86e8bf376f655185bb13f9
ripemd-160
09e63cce28feb217132f20a17bd70ba47792c740
Diameter
42523314
Circumference
133590930.86869
Area
1.4201822752204E+15
Volume
4.0260571217622E+22
Surface area
5.6807291008817E+15
Circumference
133590930.86869
Perimeter
85046628
Area
452058058385649
Diagonal
30068523.687925
Surface area
2712348350313894
Volume
9.6115033814816E+21
Space diagonal
36826270.177102
Perimeter
63784971
Area
1.9574688127372E+14
Altitude
18413135.088551
Surface area
1.9574688127372E+14
Volume
1.1327265364072E+21
Height
10022841.229308