21542685 (number)

21542685 is an odd 8-digits composite number following 21542684 and preceding 21542686. In scientific notation, it is written as 2.1542685 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 11244608 positive integers (up to 21542685) that are relatively prime to 21542685.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred forty-two thousand six hundred eighty-five

Notation

Scientific notation 2.1542685 × 10^7
Engineering notation 2.1542685 × 10^6

Prime Factorization of 21542685

Prime Factorization 15 × 47 × 30557

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21542685
Product of the distinct prime numbers

The prime factorization of 21542685 is 15 × 47 × 30557. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21542685)

Multiplication

n×y
n×2 43085370
n×3 64628055
n×4 86170740
n×5 107713425

Division

n÷y
n÷2 10771342.5
n÷3 7180895
n÷3 5385671.25
n÷5 4308537

Exponentiation

ny
n2 464087277009225
n3 9.9976860211175E+21
n4 2.1537700068184E+29
n5 4.6397988819336E+36

Nth Root

y√n
2√n 4641.4098073753
3√n 278.24878528073
4√n 68.127893020226
5√n 29.285993809347

Divisors of 21542685

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21542684
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21542685 can be divided by 8 positive divisors. The sum of these divisors (counting 21542685) is 1, the average is 0.125.

Base conversion 21542685

Base System Value
2 Binary 1010010001011011100011101
3 Ternary 1111112111000020
4 Quaternary 1102023130131
5 Quinary 21003331220
6 Senary 2045422353
8 Octal 122133435
10 Decimal 21542685
12 Duodecimal 726a9b9
16 Hexadecimal 148b71d
20 Vigesimal 6ecge5
36 Base36 ctqfx

Cryptographic Hash Functions

md5 006b6f6d63f0f034e01abfd919ddd095
sha1 93a90c02d85e906912a3f19d91e672a150bac3ca
sha256 d6c48a4f113b0d1f6446999bb94912c96056bde58ff63df698a9d89b03c708d3
sha512 dcf7af8e0fb9cc02c00175396cc16f7ceb661efda7146e62fb7fbc4f1cd34f94a557e2e03ae74f56d82469c07b6113c6ac4110e3571009ae74d54416877e036a
ripemd-160 d08e593cfe5a15caffa07171d889aca31d509500

21542685 as geometric shapes

Circle

Radius = n
Diameter 43085370
Circumference 135356681.8692
Area 1.4579731800767E+15

Sphere

Radius = n
Volume 4.1878209275787E+22
Surface area 5.8318927203067E+15
Circumference 135356681.8692

Square

Length = n
Perimeter 86170740
Area 464087277009225
Diagonal 30465957.296931

Cube

Length = n
Surface area 2784523662055350
Volume 9.9976860211175E+21
Space diagonal 37313024.951452

Equilateral Triangle

Length = n
Perimeter 64628055
Area 2.0095568573157E+14
Altitude 18656512.475726

Triangular Pyramid

Length = n
Surface area 2.0095568573157E+14
Volume 1.178238596951E+21
Height 10155319.098977