161858138 (number)

161858138 is an even 9-digits composite number following 161858137 and preceding 161858139. In scientific notation, it is written as 1.61858138 × 10^8. The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors. There are 74703744 positive integers (up to 161858138) that are relatively prime to 161858138.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred fifty-eight thousand one hundred thirty-eight

Notation

Scientific notation 1.61858138 × 10^8
Engineering notation 1.61858138 × 10^6

Prime Factorization of 161858138

Prime Factorization 2 × 13 × 6225313

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161858138
Product of the distinct prime numbers

The prime factorization of 161858138 is 2 × 13 × 6225313. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161858138)

Multiplication

n×y
n×2 323716276
n×3 485574414
n×4 647432552
n×5 809290690

Division

n÷y
n÷2 80929069
n÷3 53952712.666667
n÷3 40464534.5
n÷5 32371627.6

Exponentiation

ny
n2 26198056836827044
n3 4.240368698827E+24
n4 6.8633818202562E+32
n5 1.1108942018097E+41

Nth Root

y√n
2√n 12722.347975118
3√n 544.97700769932
4√n 112.79338622064
5√n 43.835595221922

Divisors of 161858138

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 -161858137
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 161858138 can be divided by 8 positive divisors. The sum of these divisors (counting 161858138) is 1, the average is 0.125.

Base conversion 161858138

Base System Value
2 Binary 1001101001011100001001011010
3 Ternary 102021120020121212
4 Quaternary 21221130021122
5 Quinary 312413430023
6 Senary 24021103122
8 Octal 1151341132
10 Decimal 161858138
12 Duodecimal 46257aa2
16 Hexadecimal 9a5c25a
20 Vigesimal 2abc56i
36 Base36 2od6je

Cryptographic Hash Functions

md5 f90497ee6546cbd09f7ce51c5fdf44a6
sha1 d9929e4e0da38069fd9fc1416470876291148388
sha256 b13740dcfac50258513aa017ea86f3fa944f283977f4d5a6ef920eb7d1e11b5f
sha512 319f9147e1170fac455fecb4e090cec26c548c4c5db6029eddbdd20f6442deac3dc8afbc3d96ca613da818742f128beb8c4ecd66b846d5fcf90b69c0603dc16d
ripemd-160 2888d12f6ce33880dac12dc837e04dd01a956c25

161858138 as geometric shapes

Circle

Radius = n
Diameter 323716276
Circumference 1016984674.529
Area 8.2303622896904E+16

Sphere

Radius = n
Volume 1.7762014870329E+25
Surface area 3.2921449158761E+17
Circumference 1016984674.529

Square

Length = n
Perimeter 647432552
Area 26198056836827044
Diagonal 228901973.94006

Cube

Length = n
Surface area 157188341020962264
Volume 4.240368698827E+24
Space diagonal 280346518.63449

Equilateral Triangle

Length = n
Perimeter 485574414
Area 1.134409137524E+16
Altitude 140173259.31725

Triangular Pyramid

Length = n
Surface area 1.134409137524E+16
Volume 4.9973224361196E+23
Height 76300657.980019