21057725 is an odd 8-digits composite number following 21057724
and preceding 21057726 . In scientific notation, it is written as 2.1057725 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 15550080 positive integers (up to 21057725) that are relatively prime to 21057725.
21057725 has 8 divisors, whose sum is 25658424
The reverse of 21057725 is 52775012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million fifty-seven thousand seven hundred twenty-five
Scientific notation
2.1057725 × 10^7
Engineering notation
2.1057725 × 10^6
Prime Factorization
65 × 5 × 64793
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21057725
Product of the distinct prime numbers
The prime factorization of 21057725 is 65 × 5 × 64793.
Since it has a total of 3 prime factors.
10 , 8 , 31 , 74 , 896 , 772 , 6726 , 3561 , 87195 , 77049 , 844265 , 58813 , 6399536 , 6846539 , 41634120 , 4381758 , 648995764 , 375080590 , 3606891469 , 8381398244
n×2
42115450
n×3
63173175
n×4
84230900
n×5
105288625
n÷2
10528862.5
n÷3
7019241.6666667
n÷3
5264431.25
n÷5
4211545
n2
443427782175625
n3
9.3375802944142E+21
n4
1.9662819800519E+29
n5
4.1405425208389E+36
2 √n
4588.869686535
3 √n
276.14497826731
4 √n
67.741196376614
5 √n
29.152935378825
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
-21057724
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 21057725 can be divided by 8 positive divisors.
The sum of these divisors (counting 21057725) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000010101000010111101
3
Ternary
1110121211202202
4
Quaternary
1100111002331
5
Quinary
20342321400
6
Senary
2031201245
8
Octal
120250275
10
Decimal
21057725
12
Duodecimal
7076225
16
Hexadecimal
14150bd
20
Vigesimal
6bc465
36
Base36
cjc8t
md5
c6dd8f1faf192cb716a41fd9dc6d636b
sha1
b62309b2f8abbe68e57c0572547bbb5c553cdec8
sha256
8c6a0166f4a19dad8c26f8375604e5992979af0f139051bc1c34f76d77599d07
sha512
4ce72af5ac955672c2bf31cee03c42706ad6cd7362c69bf4424f8011664347cd268ab1ace63715ce354427d2b0e06aba9e390831832af1a62bce437f1329c2b3
ripemd-160
d14e05ec9bfaa7b6d4d29bcd8fdcbe2337875532
Diameter
42115450
Circumference
132309588.32263
Area
1.3930694628806E+15
Volume
3.9113164873649E+22
Surface area
5.5722778515222E+15
Circumference
132309588.32263
Perimeter
84230900
Area
443427782175625
Diagonal
29780120.287723
Surface area
2660566693053750
Volume
9.3375802944142E+21
Space diagonal
36473049.591813
Perimeter
63173175
Area
1.9200986205394E+14
Altitude
18236524.795907
Surface area
1.9200986205394E+14
Volume
1.100444391009E+21
Height
9926706.7625743