20131891 (number)

20131891 is an odd 8-digits composite number following 20131890 and preceding 20131892. In scientific notation, it is written as 2.0131891 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 17896320 positive integers (up to 20131891) that are relatively prime to 20131891.

Interesting facts

Basic properties

Name

Name twenty million one hundred thirty-one thousand eight hundred ninety-one

Notation

Scientific notation 2.0131891 × 10^7
Engineering notation 2.0131891 × 10^6

Prime Factorization of 20131891

Prime Factorization 13 × 53 × 61 × 479

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20131891
Product of the distinct prime numbers

The prime factorization of 20131891 is 13 × 53 × 61 × 479. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 4, 37, 40, 993, 714, 4182, 2579, 74360, 26217, 889046, 139577, 3467313, 6201858, 23220210, 78835213, 121401847, 498827879, 9104199835, 4959366882

Basic calculations (n = 20131891)

Multiplication

n×y
n×2 40263782
n×3 60395673
n×4 80527564
n×5 100659455

Division

n÷y
n÷2 10065945.5
n÷3 6710630.3333333
n÷3 5032972.75
n÷5 4026378.2

Exponentiation

ny
n2 405293035235881
n3 8.1593152084279E+21
n4 1.6426244441071E+29
n5 3.30691362627E+36

Nth Root

y√n
2√n 4486.8575863292
3√n 272.03713359088
4√n 66.984009930201
5√n 28.891953955751

Divisors of 20131891

1, 13, 53, 61, 479, 689, 793, 3233, 6227, 25387, 29219, 42029, 330031, 379847, 1548607, 20131891

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 -20131890
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 20131891 can be divided by 16 positive divisors. The sum of these divisors (counting 20131891) is 1, the average is 0.0625.

Base conversion 20131891

Base System Value
2 Binary 1001100110011000000110011
3 Ternary 1101212210202121
4 Quaternary 1030303000303
5 Quinary 20123210031
6 Senary 1555255111
8 Octal 114630063
10 Decimal 20131891
12 Duodecimal 68aa497
16 Hexadecimal 1333033
20 Vigesimal 65g9eb
36 Base36 bzhv7

Cryptographic Hash Functions

md5 6b6b45f9f43c788f6c7ad966eb0c33cd
sha1 0285f5ad941228e18974e4143d251c9472da1933
sha256 c6f7b80b15cf5ed9237e12c2dabd066998c877f715291cb0e0538644be2c82d8
sha512 dfd3bb4d706eda93bfd76a74b07e960c660e8bf7cbe9025587abfd407f3cc54978f6ece55784f564cecffbf23207e79b513fcb52269ec7efbf9fa33d3f2d2327
ripemd-160 6877e719d9833b0ab4d6cda56e369178761e180c

20131891 as geometric shapes

Circle

Radius = n
Diameter 40263782
Circumference 126492401.73694
Area 1.2732656220482E+15

Sphere

Radius = n
Volume 3.4177659622827E+22
Surface area 5.0930624881926E+15
Circumference 126492401.73694

Square

Length = n
Perimeter 80527564
Area 405293035235881
Diagonal 28470793.288417

Cube

Length = n
Surface area 2431758211415286
Volume 8.1593152084279E+21
Space diagonal 34869458.064439

Equilateral Triangle

Length = n
Perimeter 60395673
Area 1.7549703224559E+14
Altitude 17434729.032219

Triangular Pyramid

Length = n
Surface area 1.7549703224559E+14
Volume 9.6158451895298E+20
Height 9490264.4294723