21077905 (number)

21077905 is an odd 8-digits composite number following 21077904 and preceding 21077906. In scientific notation, it is written as 2.1077905 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 16760688 positive integers (up to 21077905) that are relatively prime to 21077905.

Interesting facts

Basic properties

Name

Name twenty-one million seventy-seven thousand nine hundred five

Notation

Scientific notation 2.1077905 × 10^7
Engineering notation 2.1077905 × 10^6

Prime Factorization of 21077905

Prime Factorization 5 × 167 × 25243

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21077905
Product of the distinct prime numbers

The prime factorization of 21077905 is 5 × 167 × 25243. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21077905)

Multiplication

n×y
n×2 42155810
n×3 63233715
n×4 84311620
n×5 105389525

Division

n÷y
n÷2 10538952.5
n÷3 7025968.3333333
n÷3 5269476.25
n÷5 4215581

Exponentiation

ny
n2 444278079189025
n3 9.3644511467287E+21
n4 1.9738301164789E+29
n5 4.1604203681281E+36

Nth Root

y√n
2√n 4591.0679585473
3√n 276.23316168533
4√n 67.757419951968
5√n 29.158520795594

Divisors of 21077905

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 -21077904
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 21077905 can be divided by 8 positive divisors. The sum of these divisors (counting 21077905) is 1, the average is 0.125.

Base conversion 21077905

Base System Value
2 Binary 1010000011001111110010001
3 Ternary 1110122212110011
4 Quaternary 1100121332101
5 Quinary 20343443110
6 Senary 2031434521
8 Octal 120317621
10 Decimal 21077905
12 Duodecimal 7085a41
16 Hexadecimal 1419f91
20 Vigesimal 6beef5
36 Base36 cjrtd

Cryptographic Hash Functions

md5 7d9c44fcf8faa9d5b4a1e741daa81744
sha1 61f31a46fb35de584088a7db0ce20056a121d96c
sha256 0238838ebd93b2846c1e9592f1cf724675f6a3fab476cc6556dd35559f10da2c
sha512 86efd1e7eac2ebde871a2d942bee841ebb982a5fb57962507188cc0c7f049fc1d4a5d8fefe351db7514f94e97287748a1727a0a38751b4ff60e425597e5bb4e1
ripemd-160 99e2f6e22639e9fa99470b5437339379ed70f5c1

21077905 as geometric shapes

Circle

Radius = n
Diameter 42155810
Circumference 132436383.00213
Area 1.3957407497312E+15

Sphere

Radius = n
Volume 3.9225721236618E+22
Surface area 5.5829629989249E+15
Circumference 132436383.00213

Square

Length = n
Perimeter 84311620
Area 444278079189025
Diagonal 29808659.117412

Cube

Length = n
Surface area 2665668475134150
Volume 9.3644511467287E+21
Space diagonal 36508002.37711

Equilateral Triangle

Length = n
Perimeter 63233715
Area 1.9237805146113E+14
Altitude 18254001.188555

Triangular Pyramid

Length = n
Surface area 1.9237805146113E+14
Volume 1.1036111513237E+21
Height 9936219.7058039