21557039 is an odd 8-digits composite number following 21557038
and preceding 21557040 . In scientific notation, it is written as 2.1557039 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 17332704 positive integers (up to 21557039) that are relatively prime to 21557039.
21557039 has 16 divisors, whose sum is 26188800
The reverse of 21557039 is 93075512
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million five hundred fifty-seven thousand thirty-nine
Scientific notation
2.1557039 × 10^7
Engineering notation
2.1557039 × 10^6
Prime Factorization
7 × 19 × 109 × 1487
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21557039
Product of the distinct prime numbers
The prime factorization of 21557039 is 7 × 19 × 109 × 1487.
Since it has a total of 4 prime factors.
10 , 4 , 53 , 7 , 782 , 56 , 3032 , 3796 , 18936 , 26579 , 428704 , 362695 , 5386923 , 8566610 , 31429720 , 50360313 , 931891964 , 405110283 , 7815775247 , 4323217365
n×2
43114078
n×3
64671117
n×4
86228156
n×5
107785195
n÷2
10778519.5
n÷3
7185679.6666667
n÷3
5389259.75
n÷5
4311407.8
n2
464705930447521
n3
1.0017683866188E+22
n4
2.159516017931E+29
n5
4.6552771019662E+36
2 √n
4642.9558473024
3 √n
278.31057108447
4 √n
68.139238675689
5 √n
29.289895450778
1 , 7 , 19 , 109 , 133 , 763 , 1487 , 2071 , 10409 , 14497 , 28253 , 162083 , 197771 , 1134581 , 3079577 , 21557039
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21557038
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21557039 can be divided by 16 positive divisors.
The sum of these divisors (counting 21557039) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001110111100101111
3
Ternary
1111120012200212
4
Quaternary
1102032330233
5
Quinary
21004311124
6
Senary
2050013035
8
Octal
122167457
10
Decimal
21557039
12
Duodecimal
727717b
16
Hexadecimal
148ef2f
20
Vigesimal
6eecbj
36
Base36
cu1in
md5
f976b2bd6851f2f2ae384d2705b1475d
sha1
1732bcd65c854a6f6f709f42771b92a77fc471f8
sha256
43faac9dcf2b706ccbc6d126e5a358f642c2596bc0dee7b81f0dd32849a75898
sha512
ca62c84e9354e6f4100b614d79f796f8837df299e12ac9edcfdf4e266d3602f42cdac6e2d10047a91ba0ddf24c380565cffe006beb77f69d897239f0e4dfb713
ripemd-160
5cddcaa6972bb6f1453033440b3e346b704788ab
Diameter
43114078
Circumference
135446870.7111
Area
1.4599167371735E+15
Volume
4.1961976053337E+22
Surface area
5.8396669486942E+15
Circumference
135446870.7111
Perimeter
86228156
Area
464705930447521
Diagonal
30486256.918406
Surface area
2788235582685126
Volume
1.0017683866188E+22
Space diagonal
37337886.808744
Perimeter
64671117
Area
2.0122357052842E+14
Altitude
18668943.404372
Surface area
2.0122357052842E+14
Volume
1.1805953655942E+21
Height
10162085.639469