21031909 (number)

21031909 is an odd 8-digits prime number following 21031908 and preceding 21031910. In scientific notation, it is written as 2.1031909 × 10^7. The sum of its digits is 25. It has a total of 1 prime factors and 2 positive divisors. There are 21031908 positive integers (up to 21031909) that are relatively prime to 21031909.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand nine hundred nine

Notation

Scientific notation 2.1031909 × 10^7
Engineering notation 2.1031909 × 10^6

Prime Factorization of 21031909

Prime Factorization 21031909

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 21031909
Product of the distinct prime numbers

The prime factorization of 21031909 is 21031909. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 10, 100, 68, 976, 543, 6268, 7361, 27712, 4365, 521624, 574876, 6222199, 6669335, 72605770, 219209, 301266034, 238790175, 6366770366, 2358033393

Basic calculations (n = 21031909)

Multiplication

n×y
n×2 42063818
n×3 63095727
n×4 84127636
n×5 105159545

Division

n÷y
n÷2 10515954.5
n÷3 7010636.3333333
n÷3 5257977.25
n÷5 4206381.8

Exponentiation

ny
n2 442341196184281
n3 9.3032797850989E+21
n4 1.9566573384174E+29
n5 4.1152239085777E+36

Nth Root

y√n
2√n 4586.0559307536
3√n 276.03208424187
4√n 67.720424767965
5√n 29.14578378461

Divisors of 21031909

1, 21031909

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 21031910
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 10515955
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4586.0560397797
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999049064
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031909 can be divided by 2 positive divisors. The sum of these divisors (counting 21031909) is 21031910, the average is 10515955.

Base conversion 21031909

Base System Value
2 Binary 1010000001110101111100101
3 Ternary 1110120112100121
4 Quaternary 1100032233211
5 Quinary 20341010114
6 Senary 2030441541
8 Octal 120165745
10 Decimal 21031909
12 Duodecimal 70632b1
16 Hexadecimal 140ebe5
20 Vigesimal 6b8jf9
36 Base36 cisbp

Cryptographic Hash Functions

md5 7d0d7d474e10b85b50d39392754a2cfc
sha1 1b6435ce8d2a712da66ba6147c1dcc4f132b234c
sha256 e8c18ac00ba16efddfa378f0f638c0127c520a660049c026c90c862fd202532d
sha512 69b6be96c18a6692f7d11bd88fb723c843fd0cb93ed56aaad9639e966a3f549024abf1c78e5ee7064d6c775db803a31608e61004bc0f4db26bf7cd12aa411773
ripemd-160 2fb28804ba9f99441318840a5c58c54c9cf47c11

21031909 as geometric shapes

Circle

Radius = n
Diameter 42063818
Circumference 132147381.61074
Area 1.3896558523127E+15

Sphere

Radius = n
Volume 3.896948723621E+22
Surface area 5.5586234092506E+15
Circumference 132147381.61074

Square

Length = n
Perimeter 84127636
Area 442341196184281
Diagonal 29743610.950397

Cube

Length = n
Surface area 2654047177105686
Volume 9.3032797850989E+21
Space diagonal 36428334.968165

Equilateral Triangle

Length = n
Perimeter 63095727
Area 1.9153935651799E+14
Altitude 18214167.484083

Triangular Pyramid

Length = n
Surface area 1.9153935651799E+14
Volume 1.0964020372199E+21
Height 9914536.9834656