157142421 is an odd 9-digits composite number following 157142420
and preceding 157142422 . In scientific notation, it is written as 1.57142421 × 10^8.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 104676480 positive integers (up to 157142421) that are relatively prime to 157142421.
157142421 has 12 divisors, whose sum is 227167980
The reverse of 157142421 is 124241751
Previous prime number is 1361
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
one hundred fifty-seven million one hundred forty-two thousand four hundred twenty-one
Scientific notation
1.57142421 × 10^8
Engineering notation
1.57142421 × 10^6
Prime Factorization
3 × 3 × 1361 × 12829
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
52380807
Product of the distinct prime numbers
The prime factorization of 157142421 is 3 × 3 × 1361 × 12829.
Since it has a total of 4 prime factors.
10 , 2 , 32 , 59 , 813 , 128 , 4767 , 434 , 58956 , 65056 , 518124 , 790570 , 9661036 , 7269405 , 69071162 , 83696444 , 943181869 , 730462439 , 1167089393 , 3855517579
n×2
314284842
n×3
471427263
n×4
628569684
n×5
785712105
n÷2
78571210.5
n÷3
52380807
n÷3
39285605.25
n÷5
31428484.2
n2
24693740477741241
n3
3.880434162218E+24
n4
6.0978081878204E+32
n5
9.5822434142771E+40
2 √n
12535.646014466
3 √n
539.63214659081
4 √n
111.96269921034
5 √n
43.577136405696
1 , 3 , 9 , 1361 , 4083 , 12249 , 12829 , 38487 , 115461 , 17460269 , 52380807 , 157142421
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157142420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157142421 can be divided by 12 positive divisors.
The sum of these divisors (counting 157142421) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001010111011100110110010101
3
Ternary
101221200122212200
4
Quaternary
21113130312111
5
Quinary
310212024141
6
Senary
23332035113
8
Octal
1127346625
10
Decimal
157142421
12
Duodecimal
44762a99
16
Hexadecimal
95dcd95
20
Vigesimal
2922g11
36
Base36
2lk3v9
md5
629437281732e19e4747b4cb01ef6fba
sha1
0bccb27e718fac41d480bf459011ae03ab39e644
sha256
98e2fc8012c991233169ad41bd7c651298da20c00114dce91fc95db66bfe4034
sha512
39cffa50d9616dde0e5c285f2f556d11aa2c6ad22f9af1047814ab0e9870b6e57dcbed74794caedf338125a27bc0608dfdac2c03d5771f1ced69fddbe5a4f3a2
ripemd-160
f28c9f8d3ac26813ec02e0b3f8898b75209759c3
Diameter
314284842
Circumference
987354950.76183
Area
7.7577673674525E+16
Volume
1.6254324609017E+25
Surface area
3.103106946981E+17
Circumference
987354950.76183
Perimeter
628569684
Area
24693740477741241
Diagonal
222232943.00234
Surface area
148162442866447446
Volume
3.880434162218E+24
Space diagonal
272178657.19638
Perimeter
471427263
Area
1.0692703284092E+16
Altitude
136089328.59819
Surface area
1.0692703284092E+16
Volume
4.5731355167538E+23
Height
74077647.667448