21531057 is an odd 8-digits composite number following 21531056
and preceding 21531058 . In scientific notation, it is written as 2.1531057 × 10^7.
The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors.
There are 14248992 positive integers (up to 21531057) that are relatively prime to 21531057.
21531057 has 8 divisors, whose sum is 28918176
The reverse of 21531057 is 75013512
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million five hundred thirty-one thousand fifty-seven
Scientific notation
2.1531057 × 10^7
Engineering notation
2.1531057 × 10^6
Prime Factorization
3 × 137 × 52387
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21531057
Product of the distinct prime numbers
The prime factorization of 21531057 is 3 × 137 × 52387.
Since it has a total of 3 prime factors.
10 , 7 , 73 , 80 , 276 , 329 , 7358 , 9236 , 40692 , 5301 , 982849 , 21076 , 8189568 , 1078643 , 94098572 , 85682529 , 78364492 , 798050029 , 5873946453 , 810480265
n×2
43062114
n×3
64593171
n×4
86124228
n×5
107655285
n÷2
10765528.5
n÷3
7177019
n÷3
5382764.25
n÷5
4306211.4
n2
463586415537249
n3
9.9815055373582E+21
n4
2.1491236467067E+29
n5
4.6272903737291E+36
2 √n
4640.1570016541
3 √n
278.19871323102
4 √n
68.11869788578
5 √n
29.282831612211
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
-21531056
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 21531057 can be divided by 8 positive divisors.
The sum of these divisors (counting 21531057) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001000100110110001
3
Ternary
1111111220001120
4
Quaternary
1102020212301
5
Quinary
21002443212
6
Senary
2045252453
8
Octal
122104661
10
Decimal
21531057
12
Duodecimal
7264129
16
Hexadecimal
14889b1
20
Vigesimal
6eb7ch
36
Base36
cthgx
md5
5c5c9cd8239e69fdbbb5dddac8a93293
sha1
13b41c57633c6ebab359d9efeeda787e9696140f
sha256
276da9e5b1ef0a4664ed968ef327d021546e9f201b4d5170ddb58272eed7386b
sha512
18334d3afa5e2c42fb764879a233c51f0c2037c6af5a847079ebc7774c02d0f37416f0a715df0b59310c46e0a913a4944415894f881553d30d93c8583127ecf0
ripemd-160
bed5ddd63b25bde77daa3d536476da9ad44049ed
Diameter
43062114
Circumference
135283620.99045
Area
1.4563996773558E+15
Volume
4.1810432623907E+22
Surface area
5.8255987094234E+15
Circumference
135283620.99045
Perimeter
86124228
Area
463586415537249
Diagonal
30449512.821628
Surface area
2781518493223494
Volume
9.9815055373582E+21
Space diagonal
37292884.664662
Perimeter
64593171
Area
2.0073880635231E+14
Altitude
18646442.332331
Surface area
2.0073880635231E+14
Volume
1.1763317086528E+21
Height
10149837.607209