21803921 (number)

21803921 is an odd 8-digits composite number following 21803920 and preceding 21803922. In scientific notation, it is written as 2.1803921 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 21527844 positive integers (up to 21803921) that are relatively prime to 21803921.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred three thousand nine hundred twenty-one

Notation

Scientific notation 2.1803921 × 10^7
Engineering notation 2.1803921 × 10^6

Prime Factorization of 21803921

Prime Factorization 79 × 275999

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21803921
Product of the distinct prime numbers

The prime factorization of 21803921 is 79 × 275999. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21803921)

Multiplication

n×y
n×2 43607842
n×3 65411763
n×4 87215684
n×5 109019605

Division

n÷y
n÷2 10901960.5
n÷3 7267973.6666667
n÷3 5450980.25
n÷5 4360784.2

Exponentiation

ny
n2 475410970974241
n3 1.0365823253656E+22
n4 2.2601559132267E+29
n5 4.9280260979678E+36

Nth Root

y√n
2√n 4669.4668860588
3√n 279.36899144106
4√n 68.333497540071
5√n 29.356678721838

Divisors of 21803921

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 -21803920
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 21803921 can be divided by 4 positive divisors. The sum of these divisors (counting 21803921) is 1, the average is 0.25.

Base conversion 21803921

Base System Value
2 Binary 1010011001011001110010001
3 Ternary 1112000202100122
4 Quaternary 1103023032101
5 Quinary 21040211141
6 Senary 2055200025
8 Octal 123131621
10 Decimal 21803921
12 Duodecimal 7376015
16 Hexadecimal 14cb391
20 Vigesimal 6g59g1
36 Base36 czc0h

Cryptographic Hash Functions

md5 67421f1ebb050b04339fe192cadc7f28
sha1 5815614b5641a7ef5a847a75a8385f5e93fea12d
sha256 70124a68924e50ba3f53cf3e148eca308477d20fb16c0eaf64197c88c336d986
sha512 c2214a60c52a8fb75ac9e4fcf698d8c9e2542803e43e76847e597ddd47d2253024fe496e507977d33e84f4764e2d8367ac94e20cab090db2f47d6d9b3db754f7
ripemd-160 16914144557a8f8e09bdc49a999e7111ae267313

21803921 as geometric shapes

Circle

Radius = n
Diameter 43607842
Circumference 136998076.0661
Area 1.4935476138487E+15

Sphere

Radius = n
Volume 4.342025890946E+22
Surface area 5.9741904553947E+15
Circumference 136998076.0661

Square

Length = n
Perimeter 87215684
Area 475410970974241
Diagonal 30835400.791112

Cube

Length = n
Surface area 2852465825845446
Volume 1.0365823253656E+22
Space diagonal 37765498.976218

Equilateral Triangle

Length = n
Perimeter 65411763
Area 2.0585898905076E+14
Altitude 18882749.488109

Triangular Pyramid

Length = n
Surface area 2.0585898905076E+14
Volume 1.2216239858735E+21
Height 10278466.930371