21553821 (number)

21553821 is an odd 8-digits composite number following 21553820 and preceding 21553822. In scientific notation, it is written as 2.1553821 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 14125320 positive integers (up to 21553821) that are relatively prime to 21553821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1553821 × 10^7
Engineering notation 2.1553821 × 10^6

Prime Factorization of 21553821

Prime Factorization 9 × 59 × 40591

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21553821
Product of the distinct prime numbers

The prime factorization of 21553821 is 9 × 59 × 40591. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21553821)

Multiplication

n×y
n×2 43107642
n×3 64661463
n×4 86215284
n×5 107769105

Division

n÷y
n÷2 10776910.5
n÷3 7184607
n÷3 5388455.25
n÷5 4310764.2

Exponentiation

ny
n2 464567199700041
n3 1.0013198264806E+22
n4 2.1582268303714E+29
n5 4.6518034779222E+36

Nth Root

y√n
2√n 4642.6092878897
3√n 278.29672181098
4√n 68.136695604423
5√n 29.289020928891

Divisors of 21553821

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 -21553820
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 21553821 can be divided by 8 positive divisors. The sum of these divisors (counting 21553821) is 1, the average is 0.125.

Base conversion 21553821

Base System Value
2 Binary 1010010001110001010011101
3 Ternary 1111120001021200
4 Quaternary 1102032022131
5 Quinary 21004210241
6 Senary 2045550113
8 Octal 122161235
10 Decimal 21553821
12 Duodecimal 7275339
16 Hexadecimal 148e29d
20 Vigesimal 6ee4b1
36 Base36 ctz19

Cryptographic Hash Functions

md5 b4992f32dbc0c8284013ce82346fa50f
sha1 c0ecd716ddcdf5921d9695debd515c2bdf782321
sha256 ca4e8be90d3c592fc4968568956d5eb74a37736579c311845a9922d375b3e343
sha512 6fbb2febe2c29f45fae9636f1d4a16eeb19f72245d811ac2b0a0e624cc1361de26eeeed0215248634e2e626f5aaa0ac734ef894f67ae6022c52b01c051df5923
ripemd-160 162bfe846734bb626172f941a13734e732e96140

21553821 as geometric shapes

Circle

Radius = n
Diameter 43107642
Circumference 135426651.42078
Area 1.4594809016764E+15

Sphere

Radius = n
Volume 4.1943186810203E+22
Surface area 5.8379236067057E+15
Circumference 135426651.42078

Square

Length = n
Perimeter 86215284
Area 464567199700041
Diagonal 30481705.979162

Cube

Length = n
Surface area 2787403198200246
Volume 1.0013198264806E+22
Space diagonal 37332313.069245

Equilateral Triangle

Length = n
Perimeter 64661463
Area 2.0116349835262E+14
Altitude 18666156.534623

Triangular Pyramid

Length = n
Surface area 2.0116349835262E+14
Volume 1.1800667324016E+21
Height 10160568.659721