161665551 (number)

161665551 is an odd 9-digits composite number following 161665550 and preceding 161665552. In scientific notation, it is written as 1.61665551 × 10^8. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 102001680 positive integers (up to 161665551) that are relatively prime to 161665551.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million six hundred sixty-five thousand five hundred fifty-one

Notation

Scientific notation 1.61665551 × 10^8
Engineering notation 1.61665551 × 10^6

Prime Factorization of 161665551

Prime Factorization 107 × 3 × 69 × 9 × 811

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 161665551
Product of the distinct prime numbers

The prime factorization of 161665551 is 107 × 3 × 69 × 9 × 811. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 2, 50, 1, 402, 490, 4558, 2816, 99185, 51364, 335574, 451164, 2493493, 5583508, 23455304, 13546736, 984233374, 814571361, 1092242728, 9049239279

Basic calculations (n = 161665551)

Multiplication

n×y
n×2 323331102
n×3 484996653
n×4 646662204
n×5 808327755

Division

n÷y
n÷2 80832775.5
n÷3 53888517
n÷3 40416387.75
n÷5 32333110.2

Exponentiation

ny
n2 26135750380133601
n3 4.2252504860028E+24
n4 6.8307744793265E+32
n5 1.1043009199571E+41

Nth Root

y√n
2√n 12714.776875746
3√n 544.76077484477
4√n 112.75981942051
5√n 43.825158691861

Divisors of 161665551

1, 3, 9, 27, 69, 107, 207, 321, 621, 811, 963, 1863, 2433, 2889, 7299, 7383, 21897, 22149, 55959, 66447, 86777, 167877, 199341, 260331, 503631, 780993, 1510893, 2342979, 5987613, 17962839, 53888517, 161665551

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 -161665550
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 161665551 can be divided by 32 positive divisors. The sum of these divisors (counting 161665551) is 1, the average is 0.03125.

Base conversion 161665551

Base System Value
2 Binary 1001101000101101001000001111
3 Ternary 102021012110110000
4 Quaternary 21220231020033
5 Quinary 312341244201
6 Senary 24013015343
8 Octal 1150551017
10 Decimal 161665551
12 Duodecimal 46184553
16 Hexadecimal 9a2d20f
20 Vigesimal 2aa83hb
36 Base36 2o91xr

Cryptographic Hash Functions

md5 da5660db5119bc2d69ec980af1ac04ce
sha1 5a7b9fb4b4c7c1d38727f24928c9c95e6a45813c
sha256 157a26bcf7b2cbc04869a6e68242210c21f8a99beb724da12158d933aa35610f
sha512 6c1e569cf8a74754c2d1b604aef7a21057d1e7c7116b7ec17dc46f4ef008c3a9c62830051105f02a491d8b6c180f7c137de4264978a8f7ecde47a1fbb57ff9f9
ripemd-160 9f8d0d22939fbe02b172cace9e500a2473983b81

161665551 as geometric shapes

Circle

Radius = n
Diameter 323331102
Circumference 1015774614.7203
Area 8.2107881390284E+16

Sphere

Radius = n
Volume 1.7698687848537E+25
Surface area 3.2843152556114E+17
Circumference 1015774614.7203

Square

Length = n
Perimeter 646662204
Area 26135750380133601
Diagonal 228629614.79272

Cube

Length = n
Surface area 156814502280801606
Volume 4.2252504860028E+24
Space diagonal 280012948.16562

Equilateral Triangle

Length = n
Perimeter 484996653
Area 1.1317111888082E+16
Altitude 140006474.08281

Triangular Pyramid

Length = n
Surface area 1.1317111888082E+16
Volume 4.9795054514405E+23
Height 76209871.597573