157065981 is an odd 9-digits composite number following 157065980
and preceding 157065982 . In scientific notation, it is written as 1.57065981 × 10^8.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 104710652 positive integers (up to 157065981) that are relatively prime to 157065981.
157065981 has 4 divisors, whose sum is 209421312
The reverse of 157065981 is 189560751
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 42
Digital Root 6
Name
one hundred fifty-seven million sixty-five thousand nine hundred eighty-one
Scientific notation
1.57065981 × 10^8
Engineering notation
1.57065981 × 10^6
Prime Factorization
3 × 52355327
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
157065981
Product of the distinct prime numbers
The prime factorization of 157065981 is 3 × 52355327.
Since it has a total of 2 prime factors.
7 , 10 , 93 , 87 , 458 , 827 , 1170 , 5239 , 58018 , 63071 , 856920 , 572153 , 1002665 , 9863897 , 83362741 , 31601955 , 195140985 , 45316998 , 6562839278 , 5614532215
n×2
314131962
n×3
471197943
n×4
628263924
n×5
785329905
n÷2
78532990.5
n÷3
52355327
n÷3
39266495.25
n÷5
31413196.2
n2
24669722387492361
n3
3.8747741477891E+24
n4
6.0859520267594E+32
n5
9.5589602540191E+40
2 √n
12532.596738107
3 √n
539.54463325681
4 √n
111.94908100608
5 √n
43.572896068031
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
-157065980
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 157065981 can be divided by 4 positive divisors.
The sum of these divisors (counting 157065981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001010111001010001011111101
3
Ternary
101221112210000120
4
Quaternary
21113022023331
5
Quinary
310202102411
6
Senary
23330245153
8
Octal
1127121375
10
Decimal
157065981
12
Duodecimal
447267b9
16
Hexadecimal
95ca2fd
20
Vigesimal
291d4j1
36
Base36
2ligvx
md5
58717551a9a551187e9eafba6f405f5f
sha1
ff7741244cbfaffb36991ed2241ebe3147eda81d
sha256
1e2a587ac8f96a8027b1ae6dc90e5714d420df2cf7da9c59c20bc4da72f7d910
sha512
7ad0c7d72c3aedad88ff23a39ca39422efba1829e3cbaaff07fdb8f176a4723857e1ca9ce1597f04a45913683da7a0aaae2ab7cdf0fe5342436a588d7ec4ff72
ripemd-160
ac08f29c3da5ed7924c805ca90206fc4451f3995
Diameter
314131962
Circumference
986874664.07695
Area
7.7502218618646E+16
Volume
1.6230615996019E+25
Surface area
3.1000887447458E+17
Circumference
986874664.07695
Perimeter
628263924
Area
24669722387492361
Diagonal
222124840.51763
Surface area
148018334324954166
Volume
3.8747741477891E+24
Space diagonal
272046259.23265
Perimeter
471197943
Area
1.0682303145939E+16
Altitude
136023129.61632
Surface area
1.0682303145939E+16
Volume
4.5664651257801E+23
Height
74041613.505878