157078721 is an odd 9-digits composite number following 157078720
and preceding 157078722 . In scientific notation, it is written as 1.57078721 × 10^8.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 154503600 positive integers (up to 157078721) that are relatively prime to 157078721.
157078721 has 4 divisors, whose sum is 159653844
The reverse of 157078721 is 127870751
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred fifty-seven million seventy-eight thousand seven hundred twenty-one
Scientific notation
1.57078721 × 10^8
Engineering notation
1.57078721 × 10^6
Prime Factorization
61 × 2575061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157078721
Product of the distinct prime numbers
The prime factorization of 157078721 is 61 × 2575061.
Since it has a total of 2 prime factors.
4 , 9 , 72 , 8 , 670 , 470 , 552 , 9361 , 41641 , 93287 , 86298 , 989321 , 4207965 , 1051779 , 92167236 , 5859164 , 424781639 , 994641498 , 9249202569 , 2255701767
n×2
314157442
n×3
471236163
n×4
628314884
n×5
785393605
n÷2
78539360.5
n÷3
52359573.666667
n÷3
39269680.25
n÷5
31415744.2
n2
24673724590995841
n3
3.8757171010599E+24
n4
6.0879268519231E+32
n5
9.5628376344164E+40
2 √n
12533.105002353
3 √n
539.55922078395
4 √n
111.95135105193
5 √n
43.573602905606
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
-157078720
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 157078721 can be divided by 4 positive divisors.
The sum of these divisors (counting 157078721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111001101010011000001
3
Ternary
101221120102111102
4
Quaternary
21113031103001
5
Quinary
310203004341
6
Senary
23330424145
8
Octal
1127152301
10
Decimal
157078721
12
Duodecimal
44732055
16
Hexadecimal
95cd4c1
20
Vigesimal
291egg1
36
Base36
2liqpt
md5
af106116b4d42cbbd45c7b205279af7b
sha1
ea58f8c1d6cf5b2203c6f7443bddb18d71567e49
sha256
b82032f9b28f54bafe39f4f6a9bcc373fd0f4fbd375c5c13e9090f9ef29907f7
sha512
1b5daf7435a2e95be607419f9e73c8faab4d8dd74fd7b2f1b590fc60698176bdc9a7e939624e24bf9edb6d9893c8cc9f233ae9120e501003cf4e2ed5bb5f7630
ripemd-160
0cefbadda25ec2a425f2557a6c3d5aeb1100cac4
Diameter
314157442
Circumference
986954711.85776
Area
7.751479191177E+16
Volume
1.6234565829443E+25
Surface area
3.1005916764708E+17
Circumference
986954711.85776
Perimeter
628314884
Area
24673724590995841
Diagonal
222142857.59842
Surface area
148042347545975046
Volume
3.8757171010599E+24
Space diagonal
272068325.55994
Perimeter
471236163
Area
1.0684036150892E+16
Altitude
136034162.77997
Surface area
1.0684036150892E+16
Volume
4.5675764068668E+23
Height
74047619.199473