20402857 (number)

20402857 is an odd 8-digits composite number following 20402856 and preceding 20402858. In scientific notation, it is written as 2.0402857 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 20246980 positive integers (up to 20402857) that are relatively prime to 20402857.

Interesting facts

Basic properties

Name

Name twenty million four hundred two thousand eight hundred fifty-seven

Notation

Scientific notation 2.0402857 × 10^7
Engineering notation 2.0402857 × 10^6

Prime Factorization of 20402857

Prime Factorization 131 × 155747

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 20402857
Product of the distinct prime numbers

The prime factorization of 20402857 is 131 × 155747. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20402857)

Multiplication

n×y
n×2 40805714
n×3 61208571
n×4 81611428
n×5 102014285

Division

n÷y
n÷2 10201428.5
n÷3 6800952.3333333
n÷3 5100714.25
n÷5 4080571.4

Exponentiation

ny
n2 416276573762449
n3 8.4932314069252E+21
n4 1.732861858634E+29
n5 3.5355332702464E+36

Nth Root

y√n
2√n 4516.9521803978
3√n 273.25219665266
4√n 67.208274642322
5√n 28.969313066416

Divisors of 20402857

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 -20402856
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 20402857 can be divided by 4 positive divisors. The sum of these divisors (counting 20402857) is 1, the average is 0.25.

Base conversion 20402857

Base System Value
2 Binary 1001101110101001010101001
3 Ternary 1102101120110101
4 Quaternary 1031311022221
5 Quinary 20210342412
6 Senary 2005145401
8 Octal 115651251
10 Decimal 20402857
12 Duodecimal 69bb261
16 Hexadecimal 13752a9
20 Vigesimal 67a72h
36 Base36 c5ay1

Cryptographic Hash Functions

md5 3f45e81f46ae82e4e943b14e48f89e28
sha1 0e1d31d597737ea0a658ea8a70d7df090fc55451
sha256 57b02a15b3701f1589145b7b641ce606b0dfb9524fbb70a28efd4a4859160c6d
sha512 3cbc8b9549a9e4af01610f9394791fc608b9db8d85488f793f9d235d0f693dbe5cc4b662a2ee5d8df16d6d65b9cbc4052527d330aa28ff04fcf61e8a93d94a4b
ripemd-160 0e6624654d292a0680a96c8ac853e7e95baf5dfc

20402857 as geometric shapes

Circle

Radius = n
Diameter 40805714
Circumference 128194931.32689
Area 1.3077714259936E+15

Sphere

Radius = n
Volume 3.5576364524312E+22
Surface area 5.2310857039746E+15
Circumference 128194931.32689

Square

Length = n
Perimeter 81611428
Area 416276573762449
Diagonal 28853997.080559

Cube

Length = n
Surface area 2497659442574694
Volume 8.4932314069252E+21
Space diagonal 35338784.943562

Equilateral Triangle

Length = n
Perimeter 61208571
Area 1.8025304393931E+14
Altitude 17669392.471781

Triangular Pyramid

Length = n
Surface area 1.8025304393931E+14
Volume 1.0009369203372E+21
Height 9617999.0268529