157021688 is an even 9-digits composite number following 157021687
and preceding 157021689 . In scientific notation, it is written as 1.57021688 × 10^8.
The sum of its digits is 38. It has a total of 4 prime factors and 8 positive divisors.
There are 78510840 positive integers (up to 157021688) that are relatively prime to 157021688.
157021688 has 8 divisors, whose sum is 294415680
The reverse of 157021688 is 886120751
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 38
Digital Root 2
Name
one hundred fifty-seven million twenty-one thousand six hundred eighty-eight
Scientific notation
1.57021688 × 10^8
Engineering notation
1.57021688 × 10^6
Prime Factorization
2 × 2 × 2 × 19627711
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
39255422
Product of the distinct prime numbers
The prime factorization of 157021688 is 2 × 2 × 2 × 19627711.
Since it has a total of 4 prime factors.
7 , 5 , 77 , 8 , 94 , 718 , 6712 , 7173 , 51930 , 20367 , 670670 , 664751 , 7435241 , 1066060 , 91172454 , 39156042 , 813375044 , 521305221 , 8432822233 , 8950318221
n×2
314043376
n×3
471065064
n×4
628086752
n×5
785108440
n÷2
78510844
n÷3
52340562.666667
n÷3
39255422
n÷5
31404337.6
n2
24655810502369344
n3
3.8714969840902E+24
n4
6.0790899152875E+32
n5
9.5454896000221E+40
2 √n
12530.829501673
3 √n
539.49391084262
4 √n
111.94118769101
5 √n
43.570438257609
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-157021687
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 157021688 can be divided by 8 positive divisors.
The sum of these divisors (counting 157021688) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001010110111111010111111000
3
Ternary
101221110112021002
4
Quaternary
21112333113320
5
Quinary
310144143223
6
Senary
23325304132
8
Octal
1126772770
10
Decimal
157021688
12
Duodecimal
44705048
16
Hexadecimal
95bf5f8
20
Vigesimal
2917e48
36
Base36
2lhipk
md5
db31c29c5123f888565d9674c04bff0f
sha1
1830355bd0375012f4e7d02dbd29813704cca47f
sha256
3257c004798dc8c3236e87e7269cffacf1c46df52e70c727f5e97ea774e7bc0a
sha512
67f5b68824b6b79836abc8b683ac3703bd271127fff8c51fad0bed399ae7d8d831690b24d3a3ce44ec75ec03305eeb689aed2496f257358b6c06d9d92e5f5c46
ripemd-160
690cf02cbdb6b6f2ea43a7ebcf84c6b08900b382
Diameter
314043376
Circumference
986596362.95014
Area
7.7458513142546E+16
Volume
1.6216888644817E+25
Surface area
3.0983405257018E+17
Circumference
986596362.95014
Perimeter
628086752
Area
24655810502369344
Diagonal
222062200.75632
Surface area
147934863014216064
Volume
3.8714969840902E+24
Space diagonal
271969541.50623
Perimeter
471065064
Area
1.0676279122974E+16
Altitude
135984770.75311
Surface area
1.0676279122974E+16
Volume
4.5626029513224E+23
Height
74020733.585439