157021287 is an odd 9-digits composite number following 157021286
and preceding 157021288 . In scientific notation, it is written as 1.57021287 × 10^8.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 104680856 positive integers (up to 157021287) that are relatively prime to 157021287.
157021287 has 4 divisors, whose sum is 209361720
The reverse of 157021287 is 782120751
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 33
Digital Root 6
Name
one hundred fifty-seven million twenty-one thousand two hundred eighty-seven
Scientific notation
1.57021287 × 10^8
Engineering notation
1.57021287 × 10^6
Prime Factorization
3 × 52340429
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157021287
Product of the distinct prime numbers
The prime factorization of 157021287 is 3 × 52340429.
Since it has a total of 2 prime factors.
9 , 3 , 100 , 74 , 764 , 875 , 9737 , 8489 , 2942 , 53078 , 186326 , 647928 , 6552515 , 637242 , 81446825 , 70881710 , 730847072 , 167704855 , 5566564943 , 6070745630
n×2
314042574
n×3
471063861
n×4
628085148
n×5
785106435
n÷2
78510643.5
n÷3
52340429
n÷3
39255321.75
n÷5
31404257.4
n2
24655684571136369
n3
3.8714673232259E+24
n4
6.0790278167137E+32
n5
9.5453677148919E+40
2 √n
12530.813501126
3 √n
539.49345159132
4 √n
111.94111622244
5 √n
43.570416003659
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
-157021286
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 157021287 can be divided by 4 positive divisors.
The sum of these divisors (counting 157021287) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010110111111010001100111
3
Ternary
101221110111201020
4
Quaternary
21112333101213
5
Quinary
310144140122
6
Senary
23325302223
8
Octal
1126772147
10
Decimal
157021287
12
Duodecimal
44704973
16
Hexadecimal
95bf467
20
Vigesimal
2917d47
36
Base36
2lhief
md5
9efd188ddc5745d6cdf1c5a9961c161e
sha1
d255b3c63ce1253671dbf55b178d7ad721802c35
sha256
f389af3254aacc62e540b5a8d8f8b2d78800ac796fbe3ce3311ac033b6daae41
sha512
a6fd1d95fb3c58b6f07b543568ca8d732e6a5bc3f39472b1c6e6bf4160aa81a7c642cd945960ece9536b68d954c9f789215faeebc3402c5bb8b4da827348af87
ripemd-160
ad3dc418a082f5646cd9279249b8de1519730ae1
Diameter
314042574
Circumference
986593843.39283
Area
7.7458117517909E+16
Volume
1.6216764401679E+25
Surface area
3.0983247007164E+17
Circumference
986593843.39283
Perimeter
628085148
Area
24655684571136369
Diagonal
222061633.65668
Surface area
147934107426818214
Volume
3.8714673232259E+24
Space diagonal
271968846.95385
Perimeter
471063861
Area
1.067622459315E+16
Altitude
135984423.47693
Surface area
1.067622459315E+16
Volume
4.5625679956586E+23
Height
74020544.552226