20347981 (number)

20347981 is an odd 8-digits composite number following 20347980 and preceding 20347982. In scientific notation, it is written as 2.0347981 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 19903488 positive integers (up to 20347981) that are relatively prime to 20347981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.0347981 × 10^7
Engineering notation 2.0347981 × 10^6

Prime Factorization of 20347981

Prime Factorization 97 × 89 × 2357

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 20347981
Product of the distinct prime numbers

The prime factorization of 20347981 is 97 × 89 × 2357. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20347981)

Multiplication

n×y
n×2 40695962
n×3 61043943
n×4 81391924
n×5 101739905

Division

n÷y
n÷2 10173990.5
n÷3 6782660.3333333
n÷3 5086995.25
n÷5 4069596.2

Exponentiation

ny
n2 414040330776361
n3 8.4248847838711E+21
n4 1.714293955094E+29
n5 3.4882420826667E+36

Nth Root

y√n
2√n 4510.8736404382
3√n 273.00699486074
4√n 67.163037754692
5√n 28.953712966016

Divisors of 20347981

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 -20347980
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 20347981 can be divided by 8 positive divisors. The sum of these divisors (counting 20347981) is 1, the average is 0.125.

Base conversion 20347981

Base System Value
2 Binary 1001101100111110001001101
3 Ternary 1102021210011221
4 Quaternary 1031213301031
5 Quinary 20202113411
6 Senary 2004043341
8 Octal 115476115
10 Decimal 20347981
12 Duodecimal 6993551
16 Hexadecimal 1367c4d
20 Vigesimal 6739j1
36 Base36 c44lp

Cryptographic Hash Functions

md5 d5f0bf527239ff27873ee522386fa57d
sha1 110d367817217a7d70f342b741c8884d0c0509fe
sha256 d54395602472c0fd0bdea164f29528367171ef68128458e4e85dfcae943b092d
sha512 044398b0bb78982f4a09e37d3da70fdb6f869a09a5945a6c77053296afac2c466430bf3b53e2324cc8d315c821a02b3015fddaa21f34e01822b22142cc31f891
ripemd-160 ecc4b4466ba39aa2a43b3b2e49102fc82a9da672

20347981 as geometric shapes

Circle

Radius = n
Diameter 40695962
Circumference 127850135.24997
Area 1.3007460614569E+15

Sphere

Radius = n
Volume 3.5290074859133E+22
Surface area 5.2029842458276E+15
Circumference 127850135.24997

Square

Length = n
Perimeter 81391924
Area 414040330776361
Diagonal 28776390.69711

Cube

Length = n
Surface area 2484241984658166
Volume 8.4248847838711E+21
Space diagonal 35243736.923446

Equilateral Triangle

Length = n
Perimeter 61043943
Area 1.7928472232182E+14
Altitude 17621868.461723

Triangular Pyramid

Length = n
Surface area 1.7928472232182E+14
Volume 9.928821935651E+20
Height 9592130.23237