20161231 (number)

20161231 is an odd 8-digits composite number following 20161230 and preceding 20161232. In scientific notation, it is written as 2.0161231 × 10^7. The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors. There are 19877200 positive integers (up to 20161231) that are relatively prime to 20161231.

Interesting facts

Basic properties

Name

Name twenty million one hundred sixty-one thousand two hundred thirty-one

Notation

Scientific notation 2.0161231 × 10^7
Engineering notation 2.0161231 × 10^6

Prime Factorization of 20161231

Prime Factorization 71 × 283961

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20161231
Product of the distinct prime numbers

The prime factorization of 20161231 is 71 × 283961. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20161231)

Multiplication

n×y
n×2 40322462
n×3 60483693
n×4 80644924
n×5 100806155

Division

n÷y
n÷2 10080615.5
n÷3 6720410.3333333
n÷3 5040307.75
n÷5 4032246.2

Exponentiation

ny
n2 406475235435361
n3 8.1950411173917E+21
n4 1.6522211702223E+29
n5 3.3310812675943E+36

Nth Root

y√n
2√n 4490.1259447815
3√n 272.16922410038
4√n 67.008402046173
5√n 28.900370414941

Divisors of 20161231

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20161230
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20161231 can be divided by 4 positive divisors. The sum of these divisors (counting 20161231) is 1, the average is 0.25.

Base conversion 20161231

Base System Value
2 Binary 1001100111010001011001111
3 Ternary 1101221022000021
4 Quaternary 1030322023033
5 Quinary 20130124411
6 Senary 2000043011
8 Octal 114721317
10 Decimal 20161231
12 Duodecimal 6903467
16 Hexadecimal 133a2cf
20 Vigesimal 66031b
36 Base36 c04i7

Cryptographic Hash Functions

md5 2fb00ad3a214f7369e7a95f566f485e3
sha1 f0a8399ce7d3fc2b492e7927787e5b0d18c490a2
sha256 5e97f76fc1900ec3c07719592b388c5ec4b739025535c181108d744b1c3d9fe0
sha512 6f8b6c3e59641fcc7d5adec918d56aed903bf1c202f8406be5f7b92ff629e64350cc08081bfdfa5f55c5299eb9ee60a564a274f1156e58c3d9f6bf094df0152a
ripemd-160 8303237b7c2cb6f5464e024421202d31c8ac9cba

20161231 as geometric shapes

Circle

Radius = n
Diameter 40322462
Circumference 126676750.39385
Area 1.2769796135099E+15

Sphere

Radius = n
Volume 3.4327307960352E+22
Surface area 5.1079184540396E+15
Circumference 126676750.39385

Square

Length = n
Perimeter 80644924
Area 406475235435361
Diagonal 28512286.314337

Cube

Length = n
Surface area 2438851412612166
Volume 8.1950411173917E+21
Space diagonal 34920276.435133

Equilateral Triangle

Length = n
Perimeter 60483693
Area 1.7600893994814E+14
Altitude 17460138.217566

Triangular Pyramid

Length = n
Surface area 1.7600893994814E+14
Volume 9.6579485770171E+20
Height 9504095.4381123