21494895 (number)

21494895 is an odd 8-digits composite number following 21494894 and preceding 21494896. In scientific notation, it is written as 2.1494895 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 11301920 positive integers (up to 21494895) that are relatively prime to 21494895.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand eight hundred ninety-five

Notation

Scientific notation 2.1494895 × 10^7
Engineering notation 2.1494895 × 10^6

Prime Factorization of 21494895

Prime Factorization 3 × 5 × 71 × 20183

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21494895
Product of the distinct prime numbers

The prime factorization of 21494895 is 3 × 5 × 71 × 20183. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 87, 40, 913, 446, 1584, 4801, 79875, 58170, 452785, 907446, 5426966, 966614, 50463452, 99529455, 394796863, 517798768, 3486113470, 4720712126

Basic calculations (n = 21494895)

Multiplication

n×y
n×2 42989790
n×3 64484685
n×4 85979580
n×5 107474475

Division

n÷y
n÷2 10747447.5
n÷3 7164965
n÷3 5373723.75
n÷5 4298979

Exponentiation

ny
n2 462030511061025
n3 9.9312973220531E+21
n4 2.1347219315131E+29
n5 4.5885623772072E+36

Nth Root

y√n
2√n 4636.2587287596
3√n 278.04287850248
4√n 68.090078049299
5√n 29.272988733876

Divisors of 21494895

1, 3, 5, 15, 71, 213, 355, 1065, 20183, 60549, 100915, 302745, 1432993, 4298979, 7164965, 21494895

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 -21494894
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 21494895 can be divided by 16 positive divisors. The sum of these divisors (counting 21494895) is 1, the average is 0.0625.

Base conversion 21494895

Base System Value
2 Binary 1010001111111110001101111
3 Ternary 1111110001110020
4 Quaternary 1101333301233
5 Quinary 21000314040
6 Senary 2044413223
8 Octal 121776157
10 Decimal 21494895
12 Duodecimal 7247213
16 Hexadecimal 147fc6f
20 Vigesimal 6e6h4f
36 Base36 cspkf

Cryptographic Hash Functions

md5 4feac57b945e54ce18f1c60104acdcb9
sha1 9038e983039c6365240546643815222c87df97be
sha256 e432e93c76d06f01e1f61574a64d9d7f339e52c9931aac87b2a068649b7710c1
sha512 6a972561443e3b8c2095dbcbc0f17664f04bf3c1fe766b9428dcaa434a1467b8ab8aa056900e548480ba1aafbc8f0d04e1a5554dfc43793b7c750741f7b5a310
ripemd-160 cf637f6e3fa0da667a43e33f062d4392dc86552d

21494895 as geometric shapes

Circle

Radius = n
Diameter 42989790
Circumference 135056408.44337
Area 1.4515116592837E+15

Sphere

Radius = n
Volume 4.1600120943437E+22
Surface area 5.8060466371346E+15
Circumference 135056408.44337

Square

Length = n
Perimeter 85979580
Area 462030511061025
Diagonal 30398372.030786

Cube

Length = n
Surface area 2772183066366150
Volume 9.9312973220531E+21
Space diagonal 37230250.243358

Equilateral Triangle

Length = n
Perimeter 64484685
Area 2.0006507995118E+14
Altitude 18615125.121679

Triangular Pyramid

Length = n
Surface area 2.0006507995118E+14
Volume 1.1704146137339E+21
Height 10132790.676929