21087768 (number)

21087768 is an even 8-digits composite number following 21087767 and preceding 21087769. In scientific notation, it is written as 2.1087768 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 32 positive divisors. There are 6488448 positive integers (up to 21087768) that are relatively prime to 21087768.

Interesting facts

Basic properties

Name

Name twenty-one million eighty-seven thousand seven hundred sixty-eight

Notation

Scientific notation 2.1087768 × 10^7
Engineering notation 2.1087768 × 10^6

Prime Factorization of 21087768

Prime Factorization 2 × 2 × 2 × 3 × 13 × 67589

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5271942
Product of the distinct prime numbers

The prime factorization of 21087768 is 2 × 2 × 2 × 3 × 13 × 67589. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 7, 82, 94, 380, 875, 9331, 4758, 955, 29496, 885155, 416416, 6813625, 8024567, 28979489, 97369388, 79823337, 638891810, 8240107477, 7585072950

Basic calculations (n = 21087768)

Multiplication

n×y
n×2 42175536
n×3 63263304
n×4 84351072
n×5 105438840

Division

n÷y
n÷2 10543884
n÷3 7029256
n÷3 5271942
n÷5 4217553.6

Exponentiation

ny
n2 444693959221824
n3 9.3776030430713E+21
n4 1.9775271736838E+29
n5 4.170163425234E+36

Nth Root

y√n
2√n 4592.1419838677
3√n 276.27624096395
4√n 67.76534500663
5√n 29.161249118705

Divisors of 21087768

1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 67589, 135178, 202767, 270356, 405534, 540712, 811068, 878657, 1622136, 1757314, 2635971, 3514628, 5271942, 7029256, 10543884, 21087768

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21087767
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21087768 can be divided by 32 positive divisors. The sum of these divisors (counting 21087768) is 1, the average is 0.03125.

Base conversion 21087768

Base System Value
2 Binary 1010000011100011000011000
3 Ternary 1110200100222110
4 Quaternary 1100130120120
5 Quinary 20344302033
6 Senary 2031552320
8 Octal 120343030
10 Decimal 21087768
12 Duodecimal 708b6a0
16 Hexadecimal 141c618
20 Vigesimal 6bfj88
36 Base36 cjzfc

Cryptographic Hash Functions

md5 7ba7353b4ad3d1f30eeea1d3f72ae7a7
sha1 8332aff8b689128234b10938cae33e29d768e7c2
sha256 3f780c4505637d0d790c16dbaec60536353907845fa3e5ed3d59c03197bc172e
sha512 ab26c773c777e58043387bcbe7cc726c6e861adcceb95edc18564cd24daa5b6b57eaa9cc40261d79ee08146725d8bcb5e11f5989f05d7c619afae8cb7e906bfc
ripemd-160 1b9528114c77de722c85d2b44fe9f44501aaf1a2

21087768 as geometric shapes

Circle

Radius = n
Diameter 42175536
Circumference 132498354.05881
Area 1.397047275387E+15

Sphere

Radius = n
Volume 3.9280811771192E+22
Surface area 5.5881891015482E+15
Circumference 132498354.05881

Square

Length = n
Perimeter 84351072
Area 444693959221824
Diagonal 29822607.505777

Cube

Length = n
Surface area 2668163755330944
Volume 9.3776030430713E+21
Space diagonal 36525085.594225

Equilateral Triangle

Length = n
Perimeter 63263304
Area 1.9255813279779E+14
Altitude 18262542.797113

Triangular Pyramid

Length = n
Surface area 1.9255813279779E+14
Volume 1.1051611171719E+21
Height 9940869.1685925