157215910 is an even 9-digits composite number following 157215909
and preceding 157215911 . In scientific notation, it is written as 1.57215910 × 10^8.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 61855200 positive integers (up to 157215910) that are relatively prime to 157215910.
157215910 has 16 divisors, whose sum is 287628912
The reverse of 157215910 is 019512751
Previous prime number is 61
Is Prime? no
Number parity even
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred fifty-seven million two hundred fifteen thousand nine hundred ten
Scientific notation
1.57215910 × 10^8
Engineering notation
1.57215910 × 10^6
Prime Factorization
2 × 5 × 61 × 257731
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
157215910
Product of the distinct prime numbers
The prime factorization of 157215910 is 2 × 5 × 61 × 257731.
Since it has a total of 4 prime factors.
10 , 8 , 54 , 72 , 172 , 620 , 6085 , 5851 , 73560 , 36397 , 31031 , 54625 , 7347384 , 3669586 , 50769177 , 95014420 , 440949753 , 165861286 , 3094445065 , 9665919698
n×2
314431820
n×3
471647730
n×4
628863640
n×5
786079550
n÷2
78607955
n÷3
52405303.333333
n÷3
39303977.5
n÷5
31443182
n2
24716842357128100
n3
3.8858808635024E+24
n4
6.1092229610712E+32
n5
9.6046704721771E+40
2 √n
12538.576872995
3 √n
539.71625468035
4 √n
111.97578699431
5 √n
43.581211487734
1 , 2 , 5 , 10 , 61 , 122 , 305 , 610 , 257731 , 515462 , 1288655 , 2577310 , 15721591 , 31443182 , 78607955 , 157215910
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
-157215909
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 157215910 can be divided by 16 positive divisors.
The sum of these divisors (counting 157215910) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001010111101110110010100110
3
Ternary
101221211101200111
4
Quaternary
21113232302212
5
Quinary
310221402120
6
Senary
23333403234
8
Octal
1127566246
10
Decimal
157215910
12
Duodecimal
4479951a
16
Hexadecimal
95eeca6
20
Vigesimal
292bjfa
36
Base36
2llokm
md5
fc824673087542cb5e5cc47be9a54eed
sha1
a3639d77965a0ce7face9fd2930d0d7b53756344
sha256
cc1f72c00a077f7735a1279f20256410a70bddbc80c9cf288846909c4da575db
sha512
3075f900151e2e67ddcb8916112911c97abbe882eaea16bcacdb2cc08f978f97fc387ebec683b46e74fb0310b3f81abe0e7be48f2f3fe3e11c470f73c8b6dbb6
ripemd-160
a2207f7c2d903121249799fb3d68de592290fc6e
Diameter
314431820
Circumference
987816695.76687
Area
7.7650250369091E+16
Volume
1.6277139698006E+25
Surface area
3.1060100147636E+17
Circumference
987816695.76687
Perimeter
628863640
Area
24716842357128100
Diagonal
222336872.14283
Surface area
148301054142768600
Volume
3.8858808635024E+24
Space diagonal
272305943.87818
Perimeter
471647730
Area
1.0702706691304E+16
Altitude
136152971.93909
Surface area
1.0702706691304E+16
Volume
4.579554515776E+23
Height
74112290.714276