21804881 (number)

21804881 is an odd 8-digits composite number following 21804880 and preceding 21804882. In scientific notation, it is written as 2.1804881 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 18144000 positive integers (up to 21804881) that are relatively prime to 21804881.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred four thousand eight hundred eighty-one

Notation

Scientific notation 2.1804881 × 10^7
Engineering notation 2.1804881 × 10^6

Prime Factorization of 21804881

Prime Factorization 7 × 71 × 73 × 601

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21804881
Product of the distinct prime numbers

The prime factorization of 21804881 is 7 × 71 × 73 × 601. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21804881)

Multiplication

n×y
n×2 43609762
n×3 65414643
n×4 87219524
n×5 109024405

Division

n÷y
n÷2 10902440.5
n÷3 7268293.6666667
n÷3 5451220.25
n÷5 4360976.2

Exponentiation

ny
n2 475452835424161
n3 1.0367192497536E+22
n4 2.2605539871287E+29
n5 4.9291110683418E+36

Nth Root

y√n
2√n 4669.5696803881
3√n 279.37309147266
4√n 68.334249687753
5√n 29.356937225024

Divisors of 21804881

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21804880
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21804881 can be divided by 16 positive divisors. The sum of these divisors (counting 21804881) is 1, the average is 0.0625.

Base conversion 21804881

Base System Value
2 Binary 1010011001011011101010001
3 Ternary 1112000210200012
4 Quaternary 1103023131101
5 Quinary 21040224011
6 Senary 2055204305
8 Octal 123133521
10 Decimal 21804881
12 Duodecimal 7376695
16 Hexadecimal 14cb751
20 Vigesimal 6g5c41
36 Base36 czcr5

Cryptographic Hash Functions

md5 13bef84abf04188c1e24e1aff568e3fe
sha1 fab9f7161fc3b924e564a896bf2bb0038e40fc9b
sha256 7e4df1ea66976ce77a3243e16ea79c703537414cef18117a1479c8d8402faa39
sha512 005d06538739a6806c0cc7a6b02951c8dbc6096772876a550041b57d499aceb6557888d3cc47df31cf3f1180cd0a00cb1e89495a718336ab0466ec79084ae35b
ripemd-160 f9df6642d7f1bab34ab68943ba26af145d43d135

21804881 as geometric shapes

Circle

Radius = n
Diameter 43609762
Circumference 137004107.924
Area 1.493679134897E+15

Sphere

Radius = n
Volume 4.3425994384815E+22
Surface area 5.9747165395879E+15
Circumference 137004107.924

Square

Length = n
Perimeter 87219524
Area 475452835424161
Diagonal 30836758.436131

Cube

Length = n
Surface area 2852717012544966
Volume 1.0367192497536E+22
Space diagonal 37767161.744993

Equilateral Triangle

Length = n
Perimeter 65414643
Area 2.0587711688933E+14
Altitude 18883580.872497

Triangular Pyramid

Length = n
Surface area 2.0587711688933E+14
Volume 1.2217853528124E+21
Height 10278919.47871