81402020 (number)

81402020 is an even 8-digits composite number following 81402019 and preceding 81402021. In scientific notation, it is written as 8.1402020 × 10^7. The sum of its digits is 17. It has a total of 5 prime factors and 24 positive divisors. There are 27909216 positive integers (up to 81402020) that are relatively prime to 81402020.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred two thousand twenty

Notation

Scientific notation 8.1402020 × 10^7
Engineering notation 8.1402020 × 10^6

Prime Factorization of 81402020

Prime Factorization 2 × 2 × 5 × 7 × 581443

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40701010
Product of the distinct prime numbers

The prime factorization of 81402020 is 2 × 2 × 5 × 7 × 581443. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 2, 56, 39, 313, 609, 7425, 9571, 72756, 85988, 62739, 460392, 2603160, 2475122, 72313358, 57064119, 734342403, 701874719, 3996988784, 1144754334

Basic calculations (n = 81402020)

Multiplication

n×y
n×2 162804040
n×3 244206060
n×4 325608080
n×5 407010100

Division

n÷y
n÷2 40701010
n÷3 27134006.666667
n÷3 20350505
n÷5 16280404

Exponentiation

ny
n2 6626288860080400
n3 5.3939329831404E+23
n4 4.3907704057226E+31
n5 3.5741758038204E+39

Nth Root

y√n
2√n 9022.3068003698
3√n 433.38950882516
4√n 94.985824207457
5√n 38.205601052604

Divisors of 81402020

1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 581443, 1162886, 2325772, 2907215, 4070101, 5814430, 8140202, 11628860, 16280404, 20350505, 40701010, 81402020

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81402019
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81402020 can be divided by 24 positive divisors. The sum of these divisors (counting 81402020) is 1, the average is 0.041666666666667.

Base conversion 81402020

Base System Value
2 Binary 100110110100001100010100100
3 Ternary 12200011122120122
4 Quaternary 10312201202210
5 Quinary 131314331040
6 Senary 12024421112
8 Octal 466414244
10 Decimal 81402020
12 Duodecimal 23317798
16 Hexadecimal 4da18a4
20 Vigesimal 158f510
36 Base36 1cgq78

Cryptographic Hash Functions

md5 2b73eecc73b492e27ba2ed9b6ed77329
sha1 c7e08ee2052305eaab3422accb84b0769a2678f4
sha256 3aff9f226148b7d679cce33ae05863bf815770326d278396609f814136b8a032
sha512 af92cdbc07289fcb940c7e158d3893c09fb94eb9038f85759a5033b1dad75d3ab38a0c3b507941ccea4e954da167cdc53bfee073a8d86bf38431cee37e558b1b
ripemd-160 4b77dbb27110f25fe5456f9d7895d19af662fc05

81402020 as geometric shapes

Circle

Radius = n
Diameter 162804040
Circumference 511463976.03874
Area 2.0817100403392E+16

Sphere

Radius = n
Volume 2.2594053645053E+24
Surface area 8.326840161357E+16
Circumference 511463976.03874

Square

Length = n
Perimeter 325608080
Area 6626288860080400
Diagonal 115119840.68857

Cube

Length = n
Surface area 39757733160482400
Volume 5.3939329831404E+23
Space diagonal 140992434.47874

Equilateral Triangle

Length = n
Perimeter 244206060
Area 2.8692672428217E+15
Altitude 70496217.239369

Triangular Pyramid

Length = n
Surface area 2.8692672428217E+15
Volume 6.3568109827406E+22
Height 38373280.229522