21553561 (number)

21553561 is an odd 8-digits composite number following 21553560 and preceding 21553562. In scientific notation, it is written as 2.1553561 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 21388900 positive integers (up to 21553561) that are relatively prime to 21553561.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred fifty-three thousand five hundred sixty-one

Notation

Scientific notation 2.1553561 × 10^7
Engineering notation 2.1553561 × 10^6

Prime Factorization of 21553561

Prime Factorization 131 × 164531

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21553561
Product of the distinct prime numbers

The prime factorization of 21553561 is 131 × 164531. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21553561)

Multiplication

n×y
n×2 43107122
n×3 64660683
n×4 86214244
n×5 107767805

Division

n÷y
n÷2 10776780.5
n÷3 7184520.3333333
n÷3 5388390.25
n÷5 4310712.2

Exponentiation

ny
n2 464555991780721
n3 1.0012835906761E+22
n4 2.1581226949937E+29
n5 4.6515229152031E+36

Nth Root

y√n
2√n 4642.5812863105
3√n 278.29560279147
4√n 68.136490123211
5√n 29.288950266875

Divisors of 21553561

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21553560
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21553561 can be divided by 4 positive divisors. The sum of these divisors (counting 21553561) is 1, the average is 0.25.

Base conversion 21553561

Base System Value
2 Binary 1010010001110000110011001
3 Ternary 1111120000221001
4 Quaternary 1102032012121
5 Quinary 21004203221
6 Senary 2045545001
8 Octal 122160631
10 Decimal 21553561
12 Duodecimal 7275161
16 Hexadecimal 148e199
20 Vigesimal 6ee3i1
36 Base36 ctyu1

Cryptographic Hash Functions

md5 380a23a6ea47e25d007150fa2102c0c3
sha1 c83585175d00c0bc419a94bb75351f66f0eb0339
sha256 b77aaac960ab604baa6daeef92333886e1e2583f3f521ec495bbc07c93258343
sha512 a174e99d5b8a274d30fde599da97211a866495abbe4570a4be6a31c31792ebbdedcab89261373a2dfcc33dda3f83d2815791e40283f1ed41ba8176d73f113c99
ripemd-160 8c744a9463f898102c00019c3e19424f7bc865f4

21553561 as geometric shapes

Circle

Radius = n
Diameter 43107122
Circumference 135425017.7926
Area 1.4594456909594E+15

Sphere

Radius = n
Volume 4.1941668968375E+22
Surface area 5.8377827638377E+15
Circumference 135425017.7926

Square

Length = n
Perimeter 86214244
Area 464555991780721
Diagonal 30481338.283636

Cube

Length = n
Surface area 2787335950684326
Volume 1.0012835906761E+22
Space diagonal 37331862.736035

Equilateral Triangle

Length = n
Perimeter 64660683
Area 2.0115864518119E+14
Altitude 18665931.368018

Triangular Pyramid

Length = n
Surface area 2.0115864518119E+14
Volume 1.1800240280965E+21
Height 10160446.094545