21494487 (number)

21494487 is an odd 8-digits composite number following 21494486 and preceding 21494488. In scientific notation, it is written as 2.1494487 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors. There are 12282480 positive integers (up to 21494487) that are relatively prime to 21494487.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand four hundred eighty-seven

Notation

Scientific notation 2.1494487 × 10^7
Engineering notation 2.1494487 × 10^6

Prime Factorization of 21494487

Prime Factorization 3 × 7 × 7 × 146221

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 3070641
Product of the distinct prime numbers

The prime factorization of 21494487 is 3 × 7 × 7 × 146221. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 93, 12, 614, 266, 3872, 5673, 51681, 51811, 627511, 500544, 3695410, 906765, 81440534, 34681727, 959453090, 362680761, 2179443472, 4742437128

Basic calculations (n = 21494487)

Multiplication

n×y
n×2 42988974
n×3 64483461
n×4 85977948
n×5 107472435

Division

n÷y
n÷2 10747243.5
n÷3 7164829
n÷3 5373621.75
n÷5 4298897.4

Exponentiation

ny
n2 462012971393169
n3 9.9307318074418E+21
n4 2.1345598573555E+29
n5 4.5881269104649E+36

Nth Root

y√n
2√n 4636.2147275552
3√n 278.04111929078
4√n 68.089754938281
5√n 29.272877605442

Divisors of 21494487

1, 3, 7, 21, 49, 147, 146221, 438663, 1023547, 3070641, 7164829, 21494487

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21494486
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21494487 can be divided by 12 positive divisors. The sum of these divisors (counting 21494487) is 1, the average is 0.083333333333333.

Base conversion 21494487

Base System Value
2 Binary 1010001111111101011010111
3 Ternary 1111110000220010
4 Quaternary 1101333223113
5 Quinary 21000310422
6 Senary 2044411303
8 Octal 121775327
10 Decimal 21494487
12 Duodecimal 7246b33
16 Hexadecimal 147fad7
20 Vigesimal 6e6g47
36 Base36 csp93

Cryptographic Hash Functions

md5 8ca02ed661400dfc748fb766e452b9c2
sha1 977e6b8fe0d31c46b520b0915cc96b76903f4355
sha256 a5e4ca82a7537f0a3cc3be3a6b0b5c2e4f730179affa22ee87612eaca70a1c97
sha512 074d7c371761b459554edcb6b8e4d30e7261ae68dabb4bfa5fead3bc2771fd954c4fc7cfc3534be5164a43225f019513104065f7c6e4a20488e0b7aa81f4c0e3
ripemd-160 609ecc93cb5ad784fdc87a6932ba4ab6c97b7dae

21494487 as geometric shapes

Circle

Radius = n
Diameter 42988974
Circumference 135053844.90376
Area 1.451456556792E+15

Sphere

Radius = n
Volume 4.1597752121373E+22
Surface area 5.8058262271679E+15
Circumference 135053844.90376

Square

Length = n
Perimeter 85977948
Area 462012971393169
Diagonal 30397795.031652

Cube

Length = n
Surface area 2772077828359014
Volume 9.9307318074418E+21
Space diagonal 37229543.566629

Equilateral Triangle

Length = n
Perimeter 64483461
Area 2.0005748505221E+14
Altitude 18614771.783314

Triangular Pyramid

Length = n
Surface area 2.0005748505221E+14
Volume 1.1703479671978E+21
Height 10132598.343884