157216021 is an odd 9-digits composite number following 157216020
and preceding 157216022 . In scientific notation, it is written as 1.57216021 × 10^8.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 157161600 positive integers (up to 157216021) that are relatively prime to 157216021.
157216021 has 4 divisors, whose sum is 157270444
The reverse of 157216021 is 120612751
Previous prime number is 3061
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 25
Digital Root 7
Name
one hundred fifty-seven million two hundred sixteen thousand twenty-one
Scientific notation
1.57216021 × 10^8
Engineering notation
1.57216021 × 10^6
Prime Factorization
3061 × 51361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157216021
Product of the distinct prime numbers
The prime factorization of 157216021 is 3061 × 51361.
Since it has a total of 2 prime factors.
4 , 5 , 22 , 57 , 603 , 85 , 2136 , 9243 , 88428 , 45558 , 304606 , 544406 , 5993013 , 3298859 , 50255545 , 38688290 , 679919099 , 657585817 , 166749762 , 1292442180
n×2
314432042
n×3
471648063
n×4
628864084
n×5
786080105
n÷2
78608010.5
n÷3
52405340.333333
n÷3
39304005.25
n÷5
31443204.2
n2
24716877259072441
n3
3.8858890942168E+24
n4
6.1092402144005E+32
n5
9.6047043784124E+40
2 √n
12538.581299334
3 √n
539.71638169991
4 √n
111.97580675902
5 √n
43.581217641708
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
-157216020
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 157216021 can be divided by 4 positive divisors.
The sum of these divisors (counting 157216021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111101110110100010101
3
Ternary
101221211101211121
4
Quaternary
21113232310111
5
Quinary
310221403041
6
Senary
23333403541
8
Octal
1127566425
10
Decimal
157216021
12
Duodecimal
447995b1
16
Hexadecimal
95eed15
20
Vigesimal
292c011
36
Base36
2llonp
md5
9907a574246738c3dcfece8c2a2acc4f
sha1
52cd09170f7232fefec28e775929d36248d6df24
sha256
ac10199a581b796d9e0caa7bf57b47595672e347d50bcf6d1675700c184c99fe
sha512
24a122db011f8f1f63353d442fa78a7b34372fa0f1ff59b43fcb2f82312d2789f1d315ffe6ee0f1f8db512f23ff7c223a5ffb90f5f74ea663d20d3303dde00fe
ripemd-160
2dfb5d28cd351d238c13943808f2859e0af15516
Diameter
314432042
Circumference
987817393.20044
Area
7.7650360016783E+16
Volume
1.6277174174741E+25
Surface area
3.1060144006713E+17
Circumference
987817393.20044
Perimeter
628864084
Area
24716877259072441
Diagonal
222337029.12053
Surface area
148301263554434646
Volume
3.8858890942168E+24
Space diagonal
272306136.13582
Perimeter
471648063
Area
1.0702721804289E+16
Altitude
136153068.06791
Surface area
1.0702721804289E+16
Volume
4.5795642157659E+23
Height
74112343.040178