161808894 (number)

161808894 is an even 9-digits composite number following 161808893 and preceding 161808895. In scientific notation, it is written as 1.61808894 × 10^8. The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors. There are 48836736 positive integers (up to 161808894) that are relatively prime to 161808894.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred eight thousand eight hundred ninety-four

Notation

Scientific notation 1.61808894 × 10^8
Engineering notation 1.61808894 × 10^6

Prime Factorization of 161808894

Prime Factorization 2 × 3 × 117 × 53 × 4349

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 161808894
Product of the distinct prime numbers

The prime factorization of 161808894 is 2 × 3 × 117 × 53 × 4349. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 6, 61, 5, 237, 23, 5366, 2105, 68420, 4681, 417289, 774241, 7060857, 2961189, 12912858, 38896288, 765335471, 478001363, 8616092599, 1746558318

Basic calculations (n = 161808894)

Multiplication

n×y
n×2 323617788
n×3 485426682
n×4 647235576
n×5 809044470

Division

n÷y
n÷2 80904447
n÷3 53936298
n÷3 40452223.5
n÷5 32361778.8

Exponentiation

ny
n2 26182118177503236
n3 4.2364995848791E+24
n4 6.8550331226075E+32
n5 1.1092053279025E+41

Nth Root

y√n
2√n 12720.412493312
3√n 544.92173384411
4√n 112.78480612792
5√n 43.832927573788

Divisors of 161808894

1, 2, 3, 6, 53, 106, 117, 159, 234, 318, 351, 702, 4349, 6201, 8698, 12402, 13047, 18603, 26094, 37206, 230497, 460994, 508833, 691491, 1017666, 1382982, 1526499, 3052998, 26968149, 53936298, 80904447, 161808894

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161808893
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161808894 can be divided by 32 positive divisors. The sum of these divisors (counting 161808894) is 1, the average is 0.03125.

Base conversion 161808894

Base System Value
2 Binary 1001101001010000000111111110
3 Ternary 102021110202002000
4 Quaternary 21221100013332
5 Quinary 312410341034
6 Senary 24020043130
8 Octal 1151200776
10 Decimal 161808894
12 Duodecimal 462334a6
16 Hexadecimal 9a501fe
20 Vigesimal 2ab624e
36 Base36 2oc4ji

Cryptographic Hash Functions

md5 98059031701262459ecdcf84795ab102
sha1 1f15111bcede856f0e220f1266ae79a4c3764393
sha256 44b55198f4e10fb886812489a90fc08b5cf83a7b3c66cc1196cc1fb9f820433c
sha512 84dd0c330e3ed8606986aa65acb29807334e1bff6ec0bf8d6535c96f58f0e7e232a63d3c5c10f5bdb1d0f6dec0124b5adeafe75a5781632137dc38f17268f50a
ripemd-160 a18274ec1e25ffe71db809c424eb8e7b698bd769

161808894 as geometric shapes

Circle

Radius = n
Diameter 323617788
Circumference 1016675265.3518
Area 8.2253550121864E+16

Sphere

Radius = n
Volume 1.7745807963723E+25
Surface area 3.2901420048746E+17
Circumference 1016675265.3518

Square

Length = n
Perimeter 647235576
Area 26182118177503236
Diagonal 228832332.40739

Cube

Length = n
Surface area 157092709065019416
Volume 4.2364995848791E+24
Space diagonal 280261225.52453

Equilateral Triangle

Length = n
Perimeter 485426682
Area 1.1337189733302E+16
Altitude 140130612.76226

Triangular Pyramid

Length = n
Surface area 1.1337189733302E+16
Volume 4.9927626416033E+23
Height 76277444.135797