21347985 (number)

21347985 is an odd 8-digits composite number following 21347984 and preceding 21347986. In scientific notation, it is written as 2.1347985 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 11256960 positive integers (up to 21347985) that are relatively prime to 21347985.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred forty-seven thousand nine hundred eighty-five

Notation

Scientific notation 2.1347985 × 10^7
Engineering notation 2.1347985 × 10^6

Prime Factorization of 21347985

Prime Factorization 3 × 5 × 89 × 15991

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21347985
Product of the distinct prime numbers

The prime factorization of 21347985 is 3 × 5 × 89 × 15991. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 1, 33, 46, 126, 141, 1021, 7864, 73424, 32090, 451106, 753081, 7545183, 2285660, 27071024, 15228285, 976564776, 426408880, 6808432010, 8538309812

Basic calculations (n = 21347985)

Multiplication

n×y
n×2 42695970
n×3 64043955
n×4 85391940
n×5 106739925

Division

n÷y
n÷2 10673992.5
n÷3 7115995
n÷3 5336996.25
n÷5 4269597

Exponentiation

ny
n2 455736463560225
n3 9.7290551880367E+21
n4 2.0769572421838E+29
n5 4.4338852051781E+36

Nth Root

y√n
2√n 4620.3879707228
3√n 277.40798832437
4√n 67.973435772534
5√n 29.232864786646

Divisors of 21347985

1, 3, 5, 15, 89, 267, 445, 1335, 15991, 47973, 79955, 239865, 1423199, 4269597, 7115995, 21347985

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 -21347984
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 21347985 can be divided by 16 positive divisors. The sum of these divisors (counting 21347985) is 1, the average is 0.0625.

Base conversion 21347985

Base System Value
2 Binary 1010001011011111010010001
3 Ternary 1111011120221010
4 Quaternary 1101123322101
5 Quinary 20431113420
6 Senary 2041321133
8 Octal 121337221
10 Decimal 21347985
12 Duodecimal 71961a9
16 Hexadecimal 145be91
20 Vigesimal 6d89j5
36 Base36 cpk7l

Cryptographic Hash Functions

md5 532ac1016639dbb96fb78f790572a864
sha1 1696cf6ffbf40f4c1cbf0c8fd8e16c92aee029de
sha256 d30718e24403affab993568dfd5c7f0dfae2839c8c19f2a1f70cba4ac143046c
sha512 026a438c1ac2d150523438957ffdf432e58b8f413ee5f77b469e24ce45953ceb498a52995b4af79906c823585874d4c7e1ae4dc8e75936f29f78d09d2809aa8a
ripemd-160 8a86cd22cded3598189e7b2c7ac61aa3a39d82c9

21347985 as geometric shapes

Circle

Radius = n
Diameter 42695970
Circumference 134133345.68989
Area 1.4317383258938E+15

Sphere

Radius = n
Volume 4.0752971073474E+22
Surface area 5.7269533035752E+15
Circumference 134133345.68989

Square

Length = n
Perimeter 85391940
Area 455736463560225
Diagonal 30190609.916337

Cube

Length = n
Surface area 2734418781361350
Volume 9.7290551880367E+21
Space diagonal 36975794.659218

Equilateral Triangle

Length = n
Perimeter 64043955
Area 1.9733967743702E+14
Altitude 18487897.329609

Triangular Pyramid

Length = n
Surface area 1.9733967743702E+14
Volume 1.1465801496665E+21
Height 10063536.638779