21145057 is an odd 8-digits composite number following 21145056
and preceding 21145058 . In scientific notation, it is written as 2.1145057 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20935600 positive integers (up to 21145057) that are relatively prime to 21145057.
21145057 has 4 divisors, whose sum is 21354516
The reverse of 21145057 is 75054112
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred forty-five thousand fifty-seven
Scientific notation
2.1145057 × 10^7
Engineering notation
2.1145057 × 10^6
Prime Factorization
101 × 209357
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21145057
Product of the distinct prime numbers
The prime factorization of 21145057 is 101 × 209357.
Since it has a total of 2 prime factors.
1 , 10 , 91 , 26 , 400 , 807 , 4255 , 6727 , 24745 , 37338 , 615853 , 950713 , 4466027 , 9273937 , 3630359 , 33950118 , 413717274 , 736012414 , 6938149330 , 7120224574
n×2
42290114
n×3
63435171
n×4
84580228
n×5
105725285
n÷2
10572528.5
n÷3
7048352.3333333
n÷3
5286264.25
n÷5
4229011.4
n2
447113435533249
n3
9.4542390798164E+21
n4
1.9991042423434E+29
n5
4.2271173153294E+36
2 √n
4598.3754740125
3 √n
276.52620069193
4 √n
67.811322609226
5 √n
29.177076363492
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21145056
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21145057 can be divided by 4 positive divisors.
The sum of these divisors (counting 21145057) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101010010111100001
3
Ternary
1110210021120021
4
Quaternary
1100222113201
5
Quinary
20403120212
6
Senary
2033113441
8
Octal
120522741
10
Decimal
21145057
12
Duodecimal
70b8881
16
Hexadecimal
142a5e1
20
Vigesimal
6c32ch
36
Base36
cl7mp
md5
701e8ed47312767a03781adf98bd3534
sha1
64607f0fd328e767f2a01856f1818706530c9947
sha256
a7fb7a77a77c9765749d8bcb0ddbde2836e9cbdcd842a0f52256c840d64d5dcb
sha512
9e235725c060039eabde0f1c57d2a8f34f38421ddb208e9fd53bba1baf030be8a8b1930f3bbbe983801c6710b06dc5845aa91e33d1d9a95b7bab5171e6f11b21
ripemd-160
ff5a540522441ff647b27437960cae40715088d3
Diameter
42290114
Circumference
132858311.46187
Area
1.4046482843925E+15
Volume
3.9601824051244E+22
Surface area
5.6185931375702E+15
Circumference
132858311.46187
Perimeter
84580228
Area
447113435533249
Diagonal
29903626.386552
Surface area
2682680613199494
Volume
9.4542390798164E+21
Space diagonal
36624313.05294
Perimeter
63435171
Area
1.9360579677256E+14
Altitude
18312156.52647
Surface area
1.9360579677256E+14
Volume
1.1141927607162E+21
Height
9967875.4621841