157057987 is an odd 9-digits composite number following 157057986
and preceding 157057988 . In scientific notation, it is written as 1.57057987 × 10^8.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 156735000 positive integers (up to 157057987) that are relatively prime to 157057987.
157057987 has 4 divisors, whose sum is 157380976
The reverse of 157057987 is 789750751
Previous prime number is 322501
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 49
Digital Root 4
Name
one hundred fifty-seven million fifty-seven thousand nine hundred eighty-seven
Scientific notation
1.57057987 × 10^8
Engineering notation
1.57057987 × 10^6
Prime Factorization
322501 × 487
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157057987
Product of the distinct prime numbers
The prime factorization of 157057987 is 322501 × 487.
Since it has a total of 2 prime factors.
4 , 4 , 82 , 97 , 961 , 665 , 207 , 4108 , 78317 , 40631 , 766814 , 936657 , 670955 , 6516420 , 90160271 , 36640729 , 161747074 , 583904409 , 7444765071 , 913178578
n×2
314115974
n×3
471173961
n×4
628231948
n×5
785289935
n÷2
78528993.5
n÷3
52352662.333333
n÷3
39264496.75
n÷5
31411597.4
n2
24667211280492169
n3
3.8741825486178E+24
n4
6.0847131235644E+32
n5
9.5565279465951E+40
2 √n
12532.27780573
3 √n
539.5354795815
4 √n
111.94765654416
5 √n
43.572452523451
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
-157057986
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 157057987 can be divided by 4 positive divisors.
The sum of these divisors (counting 157057987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111001000001111000011
3
Ternary
101221112101001111
4
Quaternary
21113020033003
5
Quinary
310201323422
6
Senary
23330144151
8
Octal
1127101703
10
Decimal
157057987
12
Duodecimal
44722057
16
Hexadecimal
95c83c3
20
Vigesimal
291c4j7
36
Base36
2liapv
md5
7f5c7da94fa94f00e0fbb26c43315c04
sha1
99f3a19f6a410b531af2da7373b38b5de9ddd347
sha256
3a9d2284be82f004a8e0624fd9a738184e2f1e643739836ccc17b88ad03685d6
sha512
cf2e09115a3beafd138cfec5e5103e2419dafec023fb8f9f6a333df2a57efe4ce3db3438e85d6e705dd0d53c52ed716b508ad9931ec192d71ad0ac9fb5f4ee52
ripemd-160
3953641e65dc8daa629fddaf19e090846384031e
Diameter
314115974
Circumference
986824436.2936
Area
7.7494329743341E+16
Volume
1.6228137911205E+25
Surface area
3.0997731897337E+17
Circumference
986824436.2936
Perimeter
628231948
Area
24667211280492169
Diagonal
222113535.29442
Surface area
148003267682953014
Volume
3.8741825486178E+24
Space diagonal
272032413.21849
Perimeter
471173961
Area
1.0681215804712E+16
Altitude
136016206.60925
Surface area
1.0681215804712E+16
Volume
4.5657679194704E+23
Height
74037845.098139