155115981 (number)

155115981 is an odd 9-digits composite number following 155115980 and preceding 155115982. In scientific notation, it is written as 1.55115981 × 10^8. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 97967880 positive integers (up to 155115981) that are relatively prime to 155115981.

Interesting facts

Basic properties

Name

Name one hundred fifty-five million one hundred fifteen thousand nine hundred eighty-one

Notation

Scientific notation 1.55115981 × 10^8
Engineering notation 1.55115981 × 10^6

Prime Factorization of 155115981

Prime Factorization 3 × 57 × 907111

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 155115981
Product of the distinct prime numbers

The prime factorization of 155115981 is 3 × 57 × 907111. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 155115981)

Multiplication

n×y
n×2 310231962
n×3 465347943
n×4 620463924
n×5 775579905

Division

n÷y
n÷2 77557990.5
n÷3 51705327
n÷3 38778995.25
n÷5 31023196.2

Exponentiation

ny
n2 24060967561592361
n3 3.7322405871256E+24
n4 5.7893016E+32
n5 8.9801319698887E+40

Nth Root

y√n
2√n 12454.556636027
3√n 537.30248347529
4√n 111.59998492843
5√n 43.464161802371

Divisors of 155115981

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 -155115980
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 155115981 can be divided by 8 positive divisors. The sum of these divisors (counting 155115981) is 1, the average is 0.125.

Base conversion 155115981

Base System Value
2 Binary 1001001111101110000111001101
3 Ternary 101210212201010100
4 Quaternary 21033232013031
5 Quinary 304202202411
6 Senary 23220401313
8 Octal 1117560715
10 Decimal 155115981
12 Duodecimal 43b46239
16 Hexadecimal 93ee1cd
20 Vigesimal 28999j1
36 Base36 2kco99

Cryptographic Hash Functions

md5 f06312803cfc167700dbc28c252a7419
sha1 be6c7de1fd464e50d765fa5538d6fccca6eb327a
sha256 f4ed3e0a45674de2699aa91282aebaf69afa81ca1f1877e21fbf7f645d5ed7b2
sha512 77c1dac16b06de53a3db9eb82563867bb0dc9a8abc2171118846b276bd3696ba513df6bdb9c83eacad3410029b035d8a19b87a81a847fa7ec20954a719163e82
ripemd-160 51c2cc6ab38139821cc60b6955398c3e7ae090b7

155115981 as geometric shapes

Circle

Radius = n
Diameter 310231962
Circumference 974622452.72795
Area 7.5589758929761E+16

Sphere

Radius = n
Volume 1.5633572813258E+25
Surface area 3.0235903571904E+17
Circumference 974622452.72795

Square

Length = n
Perimeter 620463924
Area 24060967561592361
Diagonal 219367124.07101

Cube

Length = n
Surface area 144365805369554166
Volume 3.7322405871256E+24
Space diagonal 268668760.15789

Equilateral Triangle

Length = n
Perimeter 465347943
Area 1.0418704573986E+16
Altitude 134334380.07894

Triangular Pyramid

Length = n
Surface area 1.0418704573986E+16
Volume 4.3984877136269E+23
Height 73122374.690336