Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81662020 (number)

81662020 is an even 8-digits composite number following 81662019 and preceding 81662021. In scientific notation, it is written as 8.1662020 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors. There are 29695200 positive integers (up to 81662020) that are relatively prime to 81662020.

Interesting facts

81662020 has 12 divisors, whose sum is 145507264
The reverse of 81662020 is 02026618
Previous prime number is 55

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	eighty-one million six hundred sixty-two thousand twenty

Notation

Scientific notation	8.1662020 × 10^7
Engineering notation	8.1662020 × 10^6

Prime Factorization of 81662020

Prime Factorization 2 × 2 × 55 × 371191

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	40831010	Product of the distinct prime numbers

The prime factorization of 81662020 is 2 × 2 × 55 × 371191. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 53, 72, 259, 462, 3798, 2905, 50979, 58425, 867669, 240345, 5697284, 5422478, 33191788, 20677857, 643456881, 321602237, 1512158612, 3533821116

Basic calculations (n = 81662020)

Multiplication

n×y

n×2	163324040
n×3	244986060
n×4	326648080
n×5	408310100

Division

n÷y

n÷2	40831010
n÷3	27220673.333333
n÷3	20415505
n÷5	16332404

Exponentiation

n^y

n²	6668685510480400
n³	5.4457832953056E+23
n⁴	4.4471366437691E+31
n⁵	3.6316216154621E+39

Nth Root

^y√n

²√n	9036.7040451705
³√n	433.85043725514
⁴√n	95.061580279156
⁵√n	38.229975851809

Divisors of 81662020

1, 2, 4, 55, 110, 220, 371191, 742382, 1484764, 20415505, 40831010, 81662020

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81662019	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81662020 can be divided by 12 positive divisors. The sum of these divisors (counting 81662020) is 1, the average is 0.083333333333333.

Base conversion 81662020

Base	System	Value
2	Binary	100110111100001000001000100
3	Ternary	12200122212020021
4	Quaternary	10313201001010
5	Quinary	131401141040
6	Senary	12034144524
8	Octal	467410104
10	Decimal	81662020
12	Duodecimal	23422144
16	Hexadecimal	4de1044
20	Vigesimal	15a7f10
36	Base36	1cmatg

Cryptographic Hash Functions

md5	9a5fa74fb5960cf541017ee232c1827b
sha1	de1a0c18364aba45d7ad299b9b928f44498ce70d
sha256	e75c90eaa4b7a4fb7a4e916aaddbb4557d72fe99fb216875e95d575e1f3c313a
sha512	1be57d78450bdbb4f20a4b2e5b347fca97679aca0bca640d82909e9fb992cc67cb73c651afd3ec476315c554790d31dbb4dfd8faab969841300dac84c909f9bc
ripemd-160	808dd45ef0a9afedbe25f8ea8bdebaa13cf4373c

81662020 as geometric shapes

Circle

Radius = n

Diameter	163324040
Circumference	513097604.21861
Area	2.0950293408826E+16

Sphere

Radius = n

Volume	2.2811243724765E+24
Surface area	8.3801173635304E+16
Circumference	513097604.21861

Square

Length = n

Perimeter	326648080
Area	6668685510480400
Diagonal	115487536.21478

Cube

Length = n

Surface area	40012113062882400
Volume	5.4457832953056E+23
Space diagonal	141442767.68871

Equilateral Triangle

Length = n

Perimeter	244986060
Area	2.8876255309626E+15
Altitude	70721383.844353

Triangular Pyramid

Length = n

Surface area	2.8876255309626E+15
Volume	6.4179171616384E+22
Height	38495845.404928