157020831 is an odd 9-digits composite number following 157020830
and preceding 157020832 . In scientific notation, it is written as 1.57020831 × 10^8.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 92400000 positive integers (up to 157020831) that are relatively prime to 157020831.
157020831 has 16 divisors, whose sum is 163296000
The reverse of 157020831 is 138020751
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 27
Digital Root 9
Name
one hundred fifty-seven million twenty thousand eight hundred thirty-one
Scientific notation
1.57020831 × 10^8
Engineering notation
1.57020831 × 10^6
Prime Factorization
99 × 89 × 71 × 251
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
157020831
Product of the distinct prime numbers
The prime factorization of 157020831 is 99 × 89 × 71 × 251.
Since it has a total of 4 prime factors.
8 , 6 , 52 , 47 , 676 , 945 , 1057 , 8788 , 68972 , 38356 , 809377 , 65057 , 4371278 , 3078720 , 79312577 , 79074890 , 930640416 , 215852479 , 9527615189 , 2454259341
n×2
314041662
n×3
471062493
n×4
628083324
n×5
785104155
n÷2
78510415.5
n÷3
52340277
n÷3
39255207.75
n÷5
31404166.2
n2
24655541367930561
n3
3.8714335943473E+24
n4
6.0789572014574E+32
n5
9.5452291138627E+40
2 √n
12530.795305965
3 √n
539.49292934949
4 √n
111.94103495129
5 √n
43.570390697367
1 , 71 , 89 , 99 , 251 , 6319 , 7029 , 8811 , 17821 , 22339 , 24849 , 625581 , 1586069 , 1764279 , 2211561 , 157020831
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
-157020830
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 157020831 can be divided by 16 positive divisors.
The sum of these divisors (counting 157020831) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001010110111111001010011111
3
Ternary
101221110111002100
4
Quaternary
21112333022133
5
Quinary
310144131311
6
Senary
23325300143
8
Octal
1126771237
10
Decimal
157020831
12
Duodecimal
44704653
16
Hexadecimal
95bf29f
20
Vigesimal
2917c1b
36
Base36
2lhi1r
md5
302f1f24a14558a26bbc7164454f8fc2
sha1
8d127795a8876fd135871ab540f468c4049545bd
sha256
93e16d448d82c7e662e479ed89534a465bff9732de33153fcdc640b941c2a8c0
sha512
af7b46b9ba23d5475092130e027c02f9c1c951d94e9ca17d77514eb17ba4a7a0a7134daaf92a37c1cd02dbaf2e18b166f270304e68c89fb5b116e9185b8ac899
ripemd-160
3583a6f449ea6137fde13a403c4800714b789ef0
Diameter
314041662
Circumference
986590978.26033
Area
7.745766763177E+16
Volume
1.6216623118483E+25
Surface area
3.0983067052708E+17
Circumference
986590978.26033
Perimeter
628083324
Area
24655541367930561
Diagonal
222060988.77529
Surface area
147933248207583366
Volume
3.8714335943473E+24
Space diagonal
271968057.13869
Perimeter
471062493
Area
1.0676162584343E+16
Altitude
135984028.56934
Surface area
1.0676162584343E+16
Volume
4.562528245794E+23
Height
74020329.591765