21002557 (number)

21002557 is an odd 8-digits composite number following 21002556 and preceding 21002558. In scientific notation, it is written as 2.1002557 × 10^7. The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors. There are 20689020 positive integers (up to 21002557) that are relatively prime to 21002557.

Interesting facts

Basic properties

Name

Name twenty-one million two thousand five hundred fifty-seven

Notation

Scientific notation 2.1002557 × 10^7
Engineering notation 2.1002557 × 10^6

Prime Factorization of 21002557

Prime Factorization 67 × 313471

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21002557
Product of the distinct prime numbers

The prime factorization of 21002557 is 67 × 313471. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21002557)

Multiplication

n×y
n×2 42005114
n×3 63007671
n×4 84010228
n×5 105012785

Division

n÷y
n÷2 10501278.5
n÷3 7000852.3333333
n÷3 5250639.25
n÷5 4200511.4

Exponentiation

ny
n2 441107400538249
n3 9.2643833229264E+21
n4 1.9457573880961E+29
n5 4.086588045166E+36

Nth Root

y√n
2√n 4582.8546780364
3√n 275.90361491242
4√n 67.696784842682
5√n 29.137644104937

Divisors of 21002557

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 -21002556
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 21002557 can be divided by 4 positive divisors. The sum of these divisors (counting 21002557) is 1, the average is 0.25.

Base conversion 21002557

Base System Value
2 Binary 1010000000111100100111101
3 Ternary 1110112001002111
4 Quaternary 1100013210331
5 Quinary 20334040212
6 Senary 2030054021
8 Octal 120074475
10 Decimal 21002557
12 Duodecimal 704a311
16 Hexadecimal 140793d
20 Vigesimal 6b567h
36 Base36 ci5od

Cryptographic Hash Functions

md5 6adc1043bf4ecd5711766aec7f740ba5
sha1 88e17c18c1e45063cf5c139d890d111d32597165
sha256 109977bd5db9631d2f962beb0fcd4312f3709b17c22cc55ea285897cba023177
sha512 ddf508d9733ba6c8f1e67323265a68f54fca8aeeb0de4455adb59b5d6dee5ac90d0004488e176fbecff52aaf0ffecd3f361b7161a9495dcdb76090a472209d45
ripemd-160 527457b403faf771c7adc930dacb7a6402256cc6

21002557 as geometric shapes

Circle

Radius = n
Diameter 42005114
Circumference 131962957.5556
Area 1.3857797689751E+15

Sphere

Radius = n
Volume 3.8806558116461E+22
Surface area 5.5431190759002E+15
Circumference 131962957.5556

Square

Length = n
Perimeter 84010228
Area 441107400538249
Diagonal 29702100.953914

Cube

Length = n
Surface area 2646644403229494
Volume 9.2643833229264E+21
Space diagonal 36377495.812861

Equilateral Triangle

Length = n
Perimeter 63007671
Area 1.9100510733172E+14
Altitude 18188747.906431

Triangular Pyramid

Length = n
Surface area 1.9100510733172E+14
Volume 1.0918180451921E+21
Height 9900700.3179713