155431381 (number)

155431381 is an odd 9-digits composite number following 155431380 and preceding 155431382. In scientific notation, it is written as 1.55431381 × 10^8. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 124431552 positive integers (up to 155431381) that are relatively prime to 155431381.

Interesting facts

Basic properties

Name

Name one hundred fifty-five million four hundred thirty-one thousand three hundred eighty-one

Notation

Scientific notation 1.55431381 × 10^8
Engineering notation 1.55431381 × 10^6

Prime Factorization of 155431381

Prime Factorization 49 × 19 × 73 × 2287

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 155431381
Product of the distinct prime numbers

The prime factorization of 155431381 is 49 × 19 × 73 × 2287. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 5, 38, 30, 20, 988, 9473, 9601, 83925, 27746, 855070, 246521, 9440311, 7206175, 60596075, 91758303, 530233221, 465842966, 4822695904, 4125781239

Basic calculations (n = 155431381)

Multiplication

n×y
n×2 310862762
n×3 466294143
n×4 621725524
n×5 777156905

Division

n÷y
n÷2 77715690.5
n÷3 51810460.333333
n÷3 38857845.25
n÷5 31086276.2

Exponentiation

ny
n2 24158914199567161
n3 3.7550533974992E+24
n4 5.8365313530205E+32
n5 9.0718012844977E+40

Nth Root

y√n
2√n 12467.212238508
3√n 537.66640573296
4√n 111.65667126736
5√n 43.481822730093

Divisors of 155431381

1, 19, 49, 73, 931, 1387, 2287, 3577, 43453, 67963, 112063, 166951, 2129197, 3172069, 8180599, 155431381

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -155431380
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 155431381 can be divided by 16 positive divisors. The sum of these divisors (counting 155431381) is 1, the average is 0.0625.

Base conversion 155431381

Base System Value
2 Binary 1001010000111011000111010101
3 Ternary 101211110201202211
4 Quaternary 21100323013111
5 Quinary 304242301011
6 Senary 23231233421
8 Octal 1120730725
10 Decimal 155431381
12 Duodecimal 44078871
16 Hexadecimal 943b1d5
20 Vigesimal 28b8i91
36 Base36 2kjfmd

Cryptographic Hash Functions

md5 096071a7a0bc5716f6f8ed7d79e20924
sha1 226f60ed14880af5ce691ea73e312a6efb6b9a6a
sha256 42cdbb3e1aeddf1076ba6dd2a0efdd8a041de9c46fadb5610b02eb1a9ebc5789
sha512 abcef3c108182b83daf03f1ca4f25d8e0cc576e520b9d7e35f6a225de004d20d155c14ba7fd52f11fae0c3ee4ef649a9de9eb5db19d3acae13cc68120567fb8f
ripemd-160 e66f7738b1bad4114e7e0ed9311b2e5199ca35f8

155431381 as geometric shapes

Circle

Radius = n
Diameter 310862762
Circumference 976604169.37383
Area 7.5897467368066E+16

Sphere

Radius = n
Volume 1.5729130889895E+25
Surface area 3.0358986947227E+17
Circumference 976604169.37383

Square

Length = n
Perimeter 621725524
Area 24158914199567161
Diagonal 219813167.02858

Cube

Length = n
Surface area 144953485197402966
Volume 3.7550533974992E+24
Space diagonal 269215048.9826

Equilateral Triangle

Length = n
Perimeter 466294143
Area 1.0461116712337E+16
Altitude 134607524.4913

Triangular Pyramid

Length = n
Surface area 1.0461116712337E+16
Volume 4.4253728684822E+23
Height 73271055.676193