21031888 (number)

21031888 is an even 8-digits composite number following 21031887 and preceding 21031889. In scientific notation, it is written as 2.1031888 × 10^7. The sum of its digits is 31. It has a total of 6 prime factors and 20 positive divisors. There are 10176480 positive integers (up to 21031888) that are relatively prime to 21031888.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1031888 × 10^7
Engineering notation 2.1031888 × 10^6

Prime Factorization of 21031888

Prime Factorization 2 × 2 × 2 × 2 × 31 × 42403

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 2628986
Product of the distinct prime numbers

The prime factorization of 21031888 is 2 × 2 × 2 × 2 × 31 × 42403. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 2, 70, 25, 223, 623, 2550, 9520, 84726, 76970, 99922, 525217, 7605850, 9871662, 1870589, 29529445, 548334252, 643694650, 181282181, 3902882672

Basic calculations (n = 21031888)

Multiplication

n×y
n×2 42063776
n×3 63095664
n×4 84127552
n×5 105159440

Division

n÷y
n÷2 10515944
n÷3 7010629.3333333
n÷3 5257972
n÷5 4206377.6

Exponentiation

ny
n2 442340312844544
n3 9.3032519176314E+21
n4 1.9566495236741E+29
n5 4.1152033637167E+36

Nth Root

y√n
2√n 4586.0536412039
3√n 276.03199237074
4√n 67.720407863538
5√n 29.145777964294

Divisors of 21031888

1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 42403, 84806, 169612, 339224, 678448, 1314493, 2628986, 5257972, 10515944, 21031888

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031887
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031888 can be divided by 20 positive divisors. The sum of these divisors (counting 21031888) is 1, the average is 0.05.

Base conversion 21031888

Base System Value
2 Binary 1010000001110101111010000
3 Ternary 1110120112022211
4 Quaternary 1100032233100
5 Quinary 20341010023
6 Senary 2030441504
8 Octal 120165720
10 Decimal 21031888
12 Duodecimal 7063294
16 Hexadecimal 140ebd0
20 Vigesimal 6b8je8
36 Base36 cisb4

Cryptographic Hash Functions

md5 829269c3867d4194251dc0d0ebc49376
sha1 694d017559f85f5c334079ec73e39d71a3d13493
sha256 0c5e6f8e8d3149168a3bb065b7b248309b636188a35898a92bce399c61e65289
sha512 768b47c2e482b4de9eef3d68e2f79b3d74effea65a349b76c7452ceea2495dd1965bd7b6f7474a58ed281269df5eaaf4e38aec68058f38d5431a5708eea7a3eb
ripemd-160 a43155dd5073972a91a7ff60fe22100fc8951193

21031888 as geometric shapes

Circle

Radius = n
Diameter 42063776
Circumference 132147249.66385
Area 1.389653077219E+15

Sphere

Radius = n
Volume 3.8969370505235E+22
Surface area 5.5586123088761E+15
Circumference 132147249.66385

Square

Length = n
Perimeter 84127552
Area 442340312844544
Diagonal 29743581.251912

Cube

Length = n
Surface area 2654041877067264
Volume 9.3032519176314E+21
Space diagonal 36428298.595098

Equilateral Triangle

Length = n
Perimeter 63095664
Area 1.9153897402067E+14
Altitude 18214149.297549

Triangular Pyramid

Length = n
Surface area 1.9153897402067E+14
Volume 1.0963987530073E+21
Height 9914527.0839707