21538086 (number)

21538086 is an even 8-digits composite number following 21538085 and preceding 21538087. In scientific notation, it is written as 2.1538086 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 7088328 positive integers (up to 21538086) that are relatively prime to 21538086.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1538086 × 10^7
Engineering notation 2.1538086 × 10^6

Prime Factorization of 21538086

Prime Factorization 2 × 3 × 79 × 45439

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21538086
Product of the distinct prime numbers

The prime factorization of 21538086 is 2 × 3 × 79 × 45439. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 8, 21, 67, 958, 66, 5261, 1172, 55103, 25250, 631142, 434977, 8208119, 755037, 47970788, 83874465, 93851588, 521828211, 147767709, 8372930369

Basic calculations (n = 21538086)

Multiplication

n×y
n×2 43076172
n×3 64614258
n×4 86152344
n×5 107690430

Division

n÷y
n÷2 10769043
n÷3 7179362
n÷3 5384521.5
n÷5 4307617.2

Exponentiation

ny
n2 463889148543396
n3 9.9912843757944E+21
n4 2.1519314213632E+29
n5 4.6348484019422E+36

Nth Root

y√n
2√n 4640.9143495652
3√n 278.22898339691
4√n 68.124256690001
5√n 29.284743289383

Divisors of 21538086

1, 2, 3, 6, 79, 158, 237, 474, 45439, 90878, 136317, 272634, 3589681, 7179362, 10769043, 21538086

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 -21538085
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 21538086 can be divided by 16 positive divisors. The sum of these divisors (counting 21538086) is 1, the average is 0.0625.

Base conversion 21538086

Base System Value
2 Binary 1010010001010010100100110
3 Ternary 1111112020200220
4 Quaternary 1102022110212
5 Quinary 21003204321
6 Senary 2045345210
8 Octal 122122446
10 Decimal 21538086
12 Duodecimal 7268206
16 Hexadecimal 148a526
20 Vigesimal 6ec546
36 Base36 ctmw6

Cryptographic Hash Functions

md5 c2f32f6523e9679dddf00d45f2feb0ae
sha1 5481d855237225435cabdf9bbf545d85007af21d
sha256 bf65c389e7a304d5cf9b35db0d8babe61e885f478aa62423fb5f83451896847c
sha512 3ff0024ea4cf2e7d5dc38cecfaa9fdfd2e81e162883a2abcdc9492a0b460d3a027870bb3b8db76922f1c507a48c6d9a83c573cd9c2f223dff9352893f56f9bbf
ripemd-160 4c20b00c003ed165849b2f4fd30184af5c12244e

21538086 as geometric shapes

Circle

Radius = n
Diameter 43076172
Circumference 135327785.49997
Area 1.457350741144E+15

Sphere

Radius = n
Volume 4.1851394126563E+22
Surface area 5.8294029645758E+15
Circumference 135327785.49997

Square

Length = n
Perimeter 86152344
Area 463889148543396
Diagonal 30459453.328758

Cube

Length = n
Surface area 2783334891260376
Volume 9.9912843757944E+21
Space diagonal 37305059.249788

Equilateral Triangle

Length = n
Perimeter 64614258
Area 2.0086989358926E+14
Altitude 18652529.624894

Triangular Pyramid

Length = n
Surface area 2.0086989358926E+14
Volume 1.1774841558146E+21
Height 10153151.109586