161909969 (number)

161909969 is an odd 9-digits composite number following 161909968 and preceding 161909970. In scientific notation, it is written as 1.61909969 × 10^8. The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors. There are 147129600 positive integers (up to 161909969) that are relatively prime to 161909969.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million nine hundred nine thousand nine hundred sixty-nine

Notation

Scientific notation 1.61909969 × 10^8
Engineering notation 1.61909969 × 10^6

Prime Factorization of 161909969

Prime Factorization 13 × 101 × 389 × 317

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 161909969
Product of the distinct prime numbers

The prime factorization of 161909969 is 13 × 101 × 389 × 317. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161909969)

Multiplication

n×y
n×2 323819938
n×3 485729907
n×4 647639876
n×5 809549845

Division

n÷y
n÷2 80954984.5
n÷3 53969989.666667
n÷3 40477492.25
n÷5 32381993.8

Exponentiation

ny
n2 26214838061580961
n3 4.2444436178906E+24
n4 6.8721773459491E+32
n5 1.1126740210451E+41

Nth Root

y√n
2√n 12724.384818136
3√n 545.03517322022
4√n 112.80241494815
5√n 43.838402311876

Divisors of 161909969

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 -161909968
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 161909969 can be divided by 16 positive divisors. The sum of these divisors (counting 161909969) is 1, the average is 0.0625.

Base conversion 161909969

Base System Value
2 Binary 1001101001101000110011010001
3 Ternary 102021122212201112
4 Quaternary 21221220303101
5 Quinary 312422104334
6 Senary 24022143105
8 Octal 1151506321
10 Decimal 161909969
12 Duodecimal 46281a95
16 Hexadecimal 9a68cd1
20 Vigesimal 2abiei9
36 Base36 2oeaj5

Cryptographic Hash Functions

md5 029967e4e60da4c3a6ed663693d6c510
sha1 00bcb3b04a1f280413e2d0c00a7a4cefce80fe53
sha256 9e59ee52b313008b185df717aad85d2c88bc84a48d5a21a1b351332f7138b51c
sha512 7bbe97e44590c184398828812281cef63be3bc791f370602fe0a11a5d196e15ca9394faf2de44b39d74455626486eddf4357dbd54079c24aec249406bdb12461
ripemd-160 be41d069f0f364d2605aad5d52fc8cb4302af3d0

161909969 as geometric shapes

Circle

Radius = n
Diameter 323819938
Circumference 1017310338.3067
Area 8.2356342669309E+16

Sphere

Radius = n
Volume 1.7779083851388E+25
Surface area 3.2942537067724E+17
Circumference 1017310338.3067

Square

Length = n
Perimeter 647639876
Area 26214838061580961
Diagonal 228975274.04321

Cube

Length = n
Surface area 157289028369485766
Volume 4.2444436178906E+24
Space diagonal 280436292.5599

Equilateral Triangle

Length = n
Perimeter 485729907
Area 1.1351357858712E+16
Altitude 140218146.27995

Triangular Pyramid

Length = n
Surface area 1.1351357858712E+16
Volume 5.0021247742907E+23
Height 76325091.347736