161661838 (number)

161661838 is an even 9-digits composite number following 161661837 and preceding 161661839. In scientific notation, it is written as 1.61661838 × 10^8. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 72205920 positive integers (up to 161661838) that are relatively prime to 161661838.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.61661838 × 10^8
Engineering notation 1.61661838 × 10^6

Prime Factorization of 161661838

Prime Factorization 2 × 13 × 31 × 200573

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 161661838
Product of the distinct prime numbers

The prime factorization of 161661838 is 2 × 13 × 31 × 200573. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161661838)

Multiplication

n×y
n×2 323323676
n×3 484985514
n×4 646647352
n×5 808309190

Division

n÷y
n÷2 80830919
n÷3 53887279.333333
n÷3 40415459.5
n÷5 32332367.6

Exponentiation

ny
n2 26134549865538244
n3 4.2249593665656E+24
n4 6.8301469667431E+32
n5 1.1041741124538E+41

Nth Root

y√n
2√n 12714.630863694
3√n 544.75660427529
4√n 112.75917197148
5√n 43.824957382048

Divisors of 161661838

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 -161661837
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 161661838 can be divided by 16 positive divisors. The sum of these divisors (counting 161661838) is 1, the average is 0.0625.

Base conversion 161661838

Base System Value
2 Binary 1001101000101100001110001110
3 Ternary 102021012021100111
4 Quaternary 21220230032032
5 Quinary 312341134323
6 Senary 24012550234
8 Octal 1150541616
10 Decimal 161661838
12 Duodecimal 4618237a
16 Hexadecimal 9a2c38e
20 Vigesimal 2aa7ebi
36 Base36 2o8z2m

Cryptographic Hash Functions

md5 8e20c8b1c828895c0554dd41e65dc4b7
sha1 d6c808fdc3ce041e3dcc593b09629682fa324559
sha256 0714b11a8f55148f09959bcd98f6d7b8a4b7ed447058965957d3488dc4d8b6fb
sha512 d3cd88f632e3a4034282c1f3fb5b0b4a3ad9d6ff9a1214df0e5ea3c4037c0fa427a132f81bf517278618b3b365667f1fb00d663fdc6338cb1189796d80a4f21b
ripemd-160 8d9a00500ff83995d49b88445e8fc6d4c1b97143

161661838 as geometric shapes

Circle

Radius = n
Diameter 323323676
Circumference 1015751285.2532
Area 8.2104109862451E+16

Sphere

Radius = n
Volume 1.769746841029E+25
Surface area 3.284164394498E+17
Circumference 1015751285.2532

Square

Length = n
Perimeter 646647352
Area 26134549865538244
Diagonal 228624363.81776

Cube

Length = n
Surface area 156807299193229464
Volume 4.2249593665656E+24
Space diagonal 280006517.06097

Equilateral Triangle

Length = n
Perimeter 484985514
Area 1.1316592050014E+16
Altitude 140003258.53048

Triangular Pyramid

Length = n
Surface area 1.1316592050014E+16
Volume 4.9791623638936E+23
Height 76208121.272587