21887979 (number)

21887979 is an odd 8-digits composite number following 21887978 and preceding 21887980. In scientific notation, it is written as 2.1887979 × 10^7. The sum of its digits is 51. It has a total of 3 prime factors and 8 positive divisors. There are 14128128 positive integers (up to 21887979) that are relatively prime to 21887979.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred eighty-seven thousand nine hundred seventy-nine

Notation

Scientific notation 2.1887979 × 10^7
Engineering notation 2.1887979 × 10^6

Prime Factorization of 21887979

Prime Factorization 111 × 673 × 293

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21887979
Product of the distinct prime numbers

The prime factorization of 21887979 is 111 × 673 × 293. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 82, 70, 651, 540, 1659, 3402, 78720, 93604, 830834, 765535, 7252266, 4091924, 52331077, 43519150, 289277761, 169494136, 1221372358, 9989233708

Basic calculations (n = 21887979)

Multiplication

n×y
n×2 43775958
n×3 65663937
n×4 87551916
n×5 109439895

Division

n÷y
n÷2 10943989.5
n÷3 7295993
n÷3 5471994.75
n÷5 4377595.8

Exponentiation

ny
n2 479083624704441
n3 1.0486172316775E+22
n4 2.2952111945995E+29
n5 5.0237534427958E+36

Nth Root

y√n
2√n 4678.4590411801
3√n 279.72753682753
4√n 68.399261992949
5√n 29.379278942827

Divisors of 21887979

1, 111, 293, 673, 32523, 74703, 197189, 21887979

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21887978
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21887979 can be divided by 8 positive divisors. The sum of these divisors (counting 21887979) is 1, the average is 0.125.

Base conversion 21887979

Base System Value
2 Binary 1010011011111101111101011
3 Ternary 1112012000122220
4 Quaternary 1103133233223
5 Quinary 21100403404
6 Senary 2101045123
8 Octal 123375753
10 Decimal 21887979
12 Duodecimal 73b67a3
16 Hexadecimal 14dfbeb
20 Vigesimal 6gfjij
36 Base36 d14vf

Cryptographic Hash Functions

md5 38c05bd0da20a674eb965ddb7d402585
sha1 e4d0e1cf9f12725052f22ab823929858ee721b5c
sha256 5f7d9469c4959d9d3d18d071fc4eff1dfb4f8e96b2cad835812cc158482bbb51
sha512 1998334130da64ddaf8586254ab89ad6076f651b4440e3e957211696f172af2a737e2601b2f50a31d2b2ac34a9a73becb8a09a6a2359bb38e8031bebf45cabdf
ripemd-160 0e7fd9681e5a1fbec34e4801c0a4369e14e644a3

21887979 as geometric shapes

Circle

Radius = n
Diameter 43775958
Circumference 137526228.05666
Area 1.5050855958266E+15

Sphere

Radius = n
Volume 4.3924375886208E+22
Surface area 6.0203423833066E+15
Circumference 137526228.05666

Square

Length = n
Perimeter 87551916
Area 479083624704441
Diagonal 30954276.754737

Cube

Length = n
Surface area 2874501748226646
Volume 1.0486172316775E+22
Space diagonal 37911091.703001

Equilateral Triangle

Length = n
Perimeter 65663937
Area 2.0744929476559E+14
Altitude 18955545.8515

Triangular Pyramid

Length = n
Surface area 2.0744929476559E+14
Volume 1.2358072589803E+21
Height 10318092.251579