155996981 (number)

155996981 is an odd 9-digits composite number following 155996980 and preceding 155996982. In scientific notation, it is written as 1.55996981 × 10^8. The sum of its digits is 53. It has a total of 3 prime factors and 8 positive divisors. There are 125846208 positive integers (up to 155996981) that are relatively prime to 155996981.

Interesting facts

Basic properties

Name

Name one hundred fifty-five million nine hundred ninety-six thousand nine hundred eighty-one

Notation

Scientific notation 1.55996981 × 10^8
Engineering notation 1.55996981 × 10^6

Prime Factorization of 155996981

Prime Factorization 7 × 17 × 1310899

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 155996981
Product of the distinct prime numbers

The prime factorization of 155996981 is 7 × 17 × 1310899. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 155996981)

Multiplication

n×y
n×2 311993962
n×3 467990943
n×4 623987924
n×5 779984905

Division

n÷y
n÷2 77998490.5
n÷3 51998993.666667
n÷3 38999245.25
n÷5 31199396.2

Exponentiation

ny
n2 24335058081114361
n3 3.7961955931135E+24
n4 5.9219505181121E+32
n5 9.2380640245687E+40

Nth Root

y√n
2√n 12489.875139488
3√n 538.31778855409
4√n 111.75810994952
5√n 43.513422011575

Divisors of 155996981

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 -155996980
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 155996981 can be divided by 8 positive divisors. The sum of these divisors (counting 155996981) is 1, the average is 0.125.

Base conversion 155996981

Base System Value
2 Binary 1001010011000101001100110101
3 Ternary 101212112110121222
4 Quaternary 21103011030311
5 Quinary 304413400411
6 Senary 23251320125
8 Octal 1123051465
10 Decimal 155996981
12 Duodecimal 442b0045
16 Hexadecimal 94c5335
20 Vigesimal 28ejc91
36 Base36 2kvk1h

Cryptographic Hash Functions

md5 1b7be850dd0f5264ee4bb4c8f7de4e15
sha1 37462f6b169816d9e085ffd9a5ac8fcde757364b
sha256 a1d476941d106e40f16f91f45579bd35c4af54b61a6c92c27cfbc80236cb985f
sha512 c695f73a8d674e8e482b917ffba16c4f3ed051274404e807e7685edabddf73f8729ca813294de69fc5e4655be8b816f514a63072c1aa0a21be7c245bcbba2523
ripemd-160 5d3931da0831c45ffe2b3590cf14c1e9f0b12b47

155996981 as geometric shapes

Circle

Radius = n
Diameter 311993962
Circumference 980157938.98357
Area 7.645083969231E+16

Sphere

Radius = n
Volume 1.5901466915887E+25
Surface area 3.0580335876924E+17
Circumference 980157938.98357

Square

Length = n
Perimeter 623987924
Area 24335058081114361
Diagonal 220613046.21946

Cube

Length = n
Surface area 146010348486686166
Volume 3.7961955931135E+24
Space diagonal 270194696.91936

Equilateral Triangle

Length = n
Perimeter 467990943
Area 1.0537389250407E+16
Altitude 135097348.45968

Triangular Pyramid

Length = n
Surface area 1.0537389250407E+16
Volume 4.4738594110017E+23
Height 73537682.073153