20457981 (number)

20457981 is an odd 8-digits composite number following 20457980 and preceding 20457982. In scientific notation, it is written as 2.0457981 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 13072752 positive integers (up to 20457981) that are relatively prime to 20457981.

Interesting facts

Basic properties

Name

Name twenty million four hundred fifty-seven thousand nine hundred eighty-one

Notation

Scientific notation 2.0457981 × 10^7
Engineering notation 2.0457981 × 10^6

Prime Factorization of 20457981

Prime Factorization 27 × 67 × 263 × 43

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20457981
Product of the distinct prime numbers

The prime factorization of 20457981 is 27 × 67 × 263 × 43. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 8, 38, 24, 754, 743, 9916, 5958, 65987, 93968, 731618, 920145, 5553960, 9047419, 41102169, 25717450, 901132067, 72960826, 7074866154, 2713192924

Basic calculations (n = 20457981)

Multiplication

n×y
n×2 40915962
n×3 61373943
n×4 81831924
n×5 102289905

Division

n÷y
n÷2 10228990.5
n÷3 6819327
n÷3 5114495.25
n÷5 4091596.2

Exponentiation

ny
n2 418528986596361
n3 8.5622580557376E+21
n4 1.7516651262138E+29
n5 3.5835531870444E+36

Nth Root

y√n
2√n 4523.0499665602
3√n 273.49806432706
4√n 67.253624189037
5√n 28.984949909953

Divisors of 20457981

1, 27, 43, 67, 263, 1161, 1809, 2881, 7101, 11309, 17621, 77787, 305343, 475767, 757703, 20457981

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 -20457980
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 20457981 can be divided by 16 positive divisors. The sum of these divisors (counting 20457981) is 1, the average is 0.0625.

Base conversion 20457981

Base System Value
2 Binary 1001110000010100111111101
3 Ternary 1102111101002000
4 Quaternary 1032002213331
5 Quinary 20214123411
6 Senary 2010252513
8 Octal 116024775
10 Decimal 20457981
12 Duodecimal 6a27139
16 Hexadecimal 13829fd
20 Vigesimal 67h4j1
36 Base36 c6hh9

Cryptographic Hash Functions

md5 067697f1d2e19578d6d05b06e84dd664
sha1 a545003543638f9ab0991064cea242f0d39d310c
sha256 2cc132072e4bd9bae6ddb3fcf7e1f642442419bbe41cd394b81b057ec82c8dba
sha512 28a5ec0f68b2516f7ecd4971ea8b397478bd338b2b17a028614be663f51f4de9650261befd4358ce05955db579e739774c6a5ac5459d0acd344ef81e3b5b0e1a
ripemd-160 621030ab9952d21446850ecbf7821f877b46d2cb

20457981 as geometric shapes

Circle

Radius = n
Diameter 40915962
Circumference 128541285.63376
Area 1.3148475896055E+15

Sphere

Radius = n
Volume 3.5865502674727E+22
Surface area 5.259390358422E+15
Circumference 128541285.63376

Square

Length = n
Perimeter 81831924
Area 418528986596361
Diagonal 28931954.188971

Cube

Length = n
Surface area 2511173919578166
Volume 8.5622580557376E+21
Space diagonal 35434262.512279

Equilateral Triangle

Length = n
Perimeter 61373943
Area 1.812283673063E+14
Altitude 17717131.256139

Triangular Pyramid

Length = n
Surface area 1.812283673063E+14
Volume 1.0090717889135E+21
Height 9643984.729657