161731738 (number)

161731738 is an even 9-digits composite number following 161731737 and preceding 161731739. In scientific notation, it is written as 1.61731738 × 10^8. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 69313596 positive integers (up to 161731738) that are relatively prime to 161731738.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.61731738 × 10^8
Engineering notation 1.61731738 × 10^6

Prime Factorization of 161731738

Prime Factorization 2 × 7 × 11552267

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161731738
Product of the distinct prime numbers

The prime factorization of 161731738 is 2 × 7 × 11552267. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 2, 11, 66, 141, 407, 2602, 1922, 99123, 90612, 210136, 715943, 7100847, 2922755, 37696978, 2627809, 378840836, 979126110, 4484050364, 725584700

Basic calculations (n = 161731738)

Multiplication

n×y
n×2 323463476
n×3 485195214
n×4 646926952
n×5 808658690

Division

n÷y
n÷2 80865869
n÷3 53910579.333333
n÷3 40432934.5
n÷5 32346347.6

Exponentiation

ny
n2 26157155076500644
n3 4.230442151658E+24
n4 6.841967616961E+32
n5 1.1065633140308E+41

Nth Root

y√n
2√n 12717.379368408
3√n 544.8351076505
4√n 112.77135881246
5√n 43.82874656925

Divisors of 161731738

1, 2, 7, 14, 11552267, 23104534, 80865869, 161731738

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 -161731737
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 161731738 can be divided by 8 positive divisors. The sum of these divisors (counting 161731738) is 1, the average is 0.125.

Base conversion 161731738

Base System Value
2 Binary 1001101000111101010010011010
3 Ternary 102021022211020101
4 Quaternary 21220331102122
5 Quinary 312400403423
6 Senary 24014250014
8 Octal 1150752232
10 Decimal 161731738
12 Duodecimal 461b690a
16 Hexadecimal 9a3d49a
20 Vigesimal 2aag96i
36 Base36 2oah0a

Cryptographic Hash Functions

md5 bb588ec20a76aa35d262f4ec18e30f34
sha1 4b084c6cdf6c3867c3989ff68f07824dfe8a8046
sha256 d281c569228e227dce8466797b8731b937d85c7ed6595ce9f6ce8f9be44339e4
sha512 42f39d7cf6ae1ee476c33e66e65896b7241af02af4bb88f6542fc6f634098a13ee9a1614e738a1b2e762b7d92274b5423f3a3059450f157f6f9e0b34907a1649
ripemd-160 7eeccc9ae003905a53a124b94c667adf729fad10

161731738 as geometric shapes

Circle

Radius = n
Diameter 323463476
Circumference 1016190479.9062
Area 8.2175126227143E+16

Sphere

Radius = n
Volume 1.772043464678E+25
Surface area 3.2870050490857E+17
Circumference 1016190479.9062

Square

Length = n
Perimeter 646926952
Area 26157155076500644
Diagonal 228723217.34577

Cube

Length = n
Surface area 156942930459003864
Volume 4.230442151658E+24
Space diagonal 280127587.41242

Equilateral Triangle

Length = n
Perimeter 485195214
Area 1.1326380393489E+16
Altitude 140063793.70621

Triangular Pyramid

Length = n
Surface area 1.1326380393489E+16
Volume 4.9856238880913E+23
Height 76241072.448591