157087581 is an odd 9-digits composite number following 157087580
and preceding 157087582 . In scientific notation, it is written as 1.57087581 × 10^8.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 88748352 positive integers (up to 157087581) that are relatively prime to 157087581.
157087581 has 16 divisors, whose sum is 190206720
The reverse of 157087581 is 185780751
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred fifty-seven million eighty-seven thousand five hundred eighty-one
Scientific notation
1.57087581 × 10^8
Engineering notation
1.57087581 × 10^6
Prime Factorization
21 × 7 × 89 × 12007
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
157087581
Product of the distinct prime numbers
The prime factorization of 157087581 is 21 × 7 × 89 × 12007.
Since it has a total of 4 prime factors.
5 , 8 , 18 , 52 , 157 , 794 , 4284 , 9099 , 7330 , 73259 , 998608 , 519253 , 252810 , 961551 , 99987176 , 52220382 , 586184018 , 238237488 , 6378826680 , 5917368839
n×2
314175162
n×3
471262743
n×4
628350324
n×5
785437905
n÷2
78543790.5
n÷3
52362527
n÷3
39271895.25
n÷5
31417516.2
n2
24676508104431561
n3
3.876372965652E+24
n4
6.0893005222808E+32
n5
9.5655348902712E+40
2 √n
12533.458461255
3 √n
539.56936517692
4 √n
111.95292966803
5 √n
43.574094446929
1 , 7 , 21 , 89 , 147 , 623 , 1869 , 12007 , 13083 , 84049 , 252147 , 1068623 , 1765029 , 7480361 , 22441083 , 157087581
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157087580
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157087581 can be divided by 16 positive divisors.
The sum of these divisors (counting 157087581) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001010111001111011101011101
3
Ternary
101221120212122120
4
Quaternary
21113033131131
5
Quinary
310203300311
6
Senary
23330533153
8
Octal
1127173535
10
Decimal
157087581
12
Duodecimal
447371b9
16
Hexadecimal
95cf75d
20
Vigesimal
291fij1
36
Base36
2lixjx
md5
7e4b8c9672039e58be26b045ef753eec
sha1
2e8ccb97e52849022b7d9c04929a21fd29e8e154
sha256
39c68bb8b8e07c2cca3e3a12c03ac4e8628c995812c4a9893a315eb1a0a72572
sha512
35b0bd0928e2ecd27409a320f905c0a31035b18ec5d54cfac80fe6dc7ad4c91892c6c4037416ef582436e9eeba5daf5428cd17fe5fd8782a389bb1588d497d62
ripemd-160
f2e4708f90c769045b0ca965ac97f8142c00fb7e
Diameter
314175162
Circumference
987010380.87958
Area
7.7523536577131E+16
Volume
1.6237313108622E+25
Surface area
3.1009414630852E+17
Circumference
987010380.87958
Perimeter
628350324
Area
24676508104431561
Diagonal
222155387.53058
Surface area
148059048626589366
Volume
3.876372965652E+24
Space diagonal
272083671.53009
Perimeter
471262743
Area
1.0685241447565E+16
Altitude
136041835.76505
Surface area
1.0685241447565E+16
Volume
4.5683493507013E+23
Height
74051795.843527