157029981 is an odd 9-digits composite number following 157029980
and preceding 157029982 . In scientific notation, it is written as 1.57029981 × 10^8.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 104569920 positive integers (up to 157029981) that are relatively prime to 157029981.
157029981 has 8 divisors, whose sum is 209606784
The reverse of 157029981 is 189920751
Previous prime number is 911
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred fifty-seven million twenty-nine thousand nine hundred eighty-one
Scientific notation
1.57029981 × 10^8
Engineering notation
1.57029981 × 10^6
Prime Factorization
3 × 911 × 57457
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
157029981
Product of the distinct prime numbers
The prime factorization of 157029981 is 3 × 911 × 57457.
Since it has a total of 3 prime factors.
5 , 6 , 40 , 11 , 94 , 372 , 1362 , 6632 , 32342 , 41213 , 679438 , 49525 , 6938473 , 3101799 , 43698550 , 50627905 , 512412852 , 604504811 , 8383131938 , 8832611359
n×2
314059962
n×3
471089943
n×4
628119924
n×5
785149905
n÷2
78514990.5
n÷3
52343327
n÷3
39257495.25
n÷5
31405996.2
n2
24658414932860361
n3
3.8721104283972E+24
n4
6.0803742700111E+32
n5
9.5480105609273E+40
2 √n
12531.160401176
3 √n
539.50340835067
4 √n
111.94266568729
5 √n
43.570898476851
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
-157029980
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 157029981 can be divided by 8 positive divisors.
The sum of these divisors (counting 157029981) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001010111000001011001011101
3
Ternary
101221110221122020
4
Quaternary
21113001121131
5
Quinary
310144424411
6
Senary
23325410353
8
Octal
1127013135
10
Decimal
157029981
12
Duodecimal
447099b9
16
Hexadecimal
95c165d
20
Vigesimal
2918ej1
36
Base36
2lhp3x
md5
d77d4e3fec92d561bb97c9e8cde37338
sha1
45f63310c12b83dc67eead8454af8a1c6dd47e24
sha256
5b3829b80cde0f2d33d72a2ce434dd234c460538ec48fff0f26a4cd1025e6224
sha512
70ddadcf066c6e61129729a89b6bd0ffe9bbea5d3912b54662daaf891655e49eddfd8aa40603d4a343b8bcffe12e0d9f9d35eae655610095a2c7890d049de324
ripemd-160
f672254b59fef2862cb29fba69f62eabcfb64c39
Diameter
314059962
Circumference
986648469.40589
Area
7.7466695202243E+16
Volume
1.6219458234321E+25
Surface area
3.0986678080897E+17
Circumference
986648469.40589
Perimeter
628119924
Area
24658414932860361
Diagonal
222073928.82939
Surface area
147950489597162166
Volume
3.8721104283972E+24
Space diagonal
271983905.40358
Perimeter
471089943
Area
1.0677406874457E+16
Altitude
135991952.70179
Surface area
1.0677406874457E+16
Volume
4.5633259023713E+23
Height
74024642.94313