21388315 (number)

21388315 is an odd 8-digits composite number following 21388314 and preceding 21388316. In scientific notation, it is written as 2.1388315 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 15724800 positive integers (up to 21388315) that are relatively prime to 21388315.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-eight thousand three hundred fifteen

Notation

Scientific notation 2.1388315 × 10^7
Engineering notation 2.1388315 × 10^6

Prime Factorization of 21388315

Prime Factorization 5 × 13 × 281 × 1171

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21388315
Product of the distinct prime numbers

The prime factorization of 21388315 is 5 × 13 × 281 × 1171. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 37, 43, 778, 845, 8224, 3064, 5439, 65108, 919484, 518683, 6571046, 3315964, 29975683, 43222903, 742096546, 748645745, 2727206914, 1678278064

Basic calculations (n = 21388315)

Multiplication

n×y
n×2 42776630
n×3 64164945
n×4 85553260
n×5 106941575

Division

n÷y
n÷2 10694157.5
n÷3 7129438.3333333
n÷3 5347078.75
n÷5 4277663

Exponentiation

ny
n2 457460018539225
n3 9.7842989764228E+21
n4 2.0926966856191E+29
n5 4.4759255911477E+36

Nth Root

y√n
2√n 4624.7502635278
3√n 277.58256883381
4√n 68.00551641983
5√n 29.243901627278

Divisors of 21388315

1, 5, 13, 65, 281, 1171, 1405, 3653, 5855, 15223, 18265, 76115, 329051, 1645255, 4277663, 21388315

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 -21388314
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 21388315 can be divided by 16 positive divisors. The sum of these divisors (counting 21388315) is 1, the average is 0.0625.

Base conversion 21388315

Base System Value
2 Binary 1010001100101110000011011
3 Ternary 1111020122020211
4 Quaternary 1101211300123
5 Quinary 20433411230
6 Senary 2042231551
8 Octal 121456033
10 Decimal 21388315
12 Duodecimal 71b55b7
16 Hexadecimal 1465c1b
20 Vigesimal 6ddaff
36 Base36 cqfbv

Cryptographic Hash Functions

md5 1bff50009dddbf8b6205d91f071625b1
sha1 8c161ceb8472828fe93fd63a692202ff75c87cfb
sha256 82e0f0f016e3a2c987942d4e1b47faaae8ae4ed401a380ac9e0940c9bced6173
sha512 78de16d087e97ac4021b5d79c8316a657b080e50d5096af103925a243ad3e25548824aaacf9a173bbf30b0c37e4c796c3d4ff86d6eb2122e4e55590e94178564
ripemd-160 7be924becb3982027c5e8e3466069a46c1bdb10d

21388315 as geometric shapes

Circle

Radius = n
Diameter 42776630
Circumference 134386746.55333
Area 1.4371530335539E+15

Sphere

Radius = n
Volume 4.0984375713141E+22
Surface area 5.7486121342155E+15
Circumference 134386746.55333

Square

Length = n
Perimeter 85553260
Area 457460018539225
Diagonal 30247645.149308

Cube

Length = n
Surface area 2744760111235350
Volume 9.7842989764228E+21
Space diagonal 37045648.268288

Equilateral Triangle

Length = n
Perimeter 64164945
Area 1.9808599863533E+14
Altitude 18522824.134144

Triangular Pyramid

Length = n
Surface area 1.9808599863533E+14
Volume 1.1530906925642E+21
Height 10082548.383103