21531768 (number)

21531768 is an even 8-digits composite number following 21531767 and preceding 21531769. In scientific notation, it is written as 2.1531768 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 16 positive divisors. There are 7177248 positive integers (up to 21531768) that are relatively prime to 21531768.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred thirty-one thousand seven hundred sixty-eight

Notation

Scientific notation 2.1531768 × 10^7
Engineering notation 2.1531768 × 10^6

Prime Factorization of 21531768

Prime Factorization 2 × 2 × 2 × 3 × 897157

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5382942
Product of the distinct prime numbers

The prime factorization of 21531768 is 2 × 2 × 2 × 3 × 897157. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 6, 18, 28, 409, 535, 1200, 6377, 22547, 81546, 358651, 27042, 3096785, 9516761, 41749109, 49721378, 83410144, 879072643, 1433717184, 2847538939

Basic calculations (n = 21531768)

Multiplication

n×y
n×2 43063536
n×3 64595304
n×4 86127072
n×5 107658840

Division

n÷y
n÷2 10765884
n÷3 7177256
n÷3 5382942
n÷5 4306353.6

Exponentiation

ny
n2 463617033205824
n3 9.9824943998361E+21
n4 2.1494075347857E+29
n5 4.6280544376458E+36

Nth Root

y√n
2√n 4640.2336148086
3√n 278.20177542947
4√n 68.119260233862
5√n 29.28302500558

Divisors of 21531768

1, 2, 3, 4, 6, 8, 12, 24, 897157, 1794314, 2691471, 3588628, 5382942, 7177256, 10765884, 21531768

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 -21531767
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 21531768 can be divided by 16 positive divisors. The sum of these divisors (counting 21531768) is 1, the average is 0.0625.

Base conversion 21531768

Base System Value
2 Binary 1010010001000110001111000
3 Ternary 1111111221000220
4 Quaternary 1102020301320
5 Quinary 21003004033
6 Senary 2045300040
8 Octal 122106170
10 Decimal 21531768
12 Duodecimal 7264620
16 Hexadecimal 1488c78
20 Vigesimal 6eb988
36 Base36 cti0o

Cryptographic Hash Functions

md5 a31904c7b17e162d36e264d0515ed495
sha1 a5e4932fc49c32d1aa7427d573214483852df610
sha256 25053723ccd12a28b6f5aace414bb4bebbc68b88bf53d419bf783e81bc137c86
sha512 47f8c47bf887c56f0ab5afa4bfbf469cf93c7d01b04e6ee3d73a040934a70b267141a860b003b1abc4d8fb08781a7a9e59e24181d5546e1a9181f50ec21c61f1
ripemd-160 33a293189b990bfe9438f6cda8a1f5258cee7474

21531768 as geometric shapes

Circle

Radius = n
Diameter 43063536
Circumference 135288088.3352
Area 1.4564958655985E+15

Sphere

Radius = n
Volume 4.1814574761368E+22
Surface area 5.825983462394E+15
Circumference 135288088.3352

Square

Length = n
Perimeter 86127072
Area 463617033205824
Diagonal 30450518.327471

Cube

Length = n
Surface area 2781702199234944
Volume 9.9824943998361E+21
Space diagonal 37294116.152786

Equilateral Triangle

Length = n
Perimeter 64595304
Area 2.0075206419171E+14
Altitude 18647058.076393

Triangular Pyramid

Length = n
Surface area 2.0075206419171E+14
Volume 1.1764482472135E+21
Height 10150172.775824