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

81207621 (number)

81207621 is an odd 8-digits composite number following 81207620 and preceding 81207622. In scientific notation, it is written as 8.1207621 × 10^7. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 49216680 positive integers (up to 81207621) that are relatively prime to 81207621.

Interesting facts

81207621 has 8 divisors, whose sum is 98433600
The reverse of 81207621 is 12670218
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	8.1207621 × 10^7
Engineering notation	8.1207621 × 10^6

Prime Factorization of 81207621

Prime Factorization 9 × 11 × 820279

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81207621	Product of the distinct prime numbers

The prime factorization of 81207621 is 9 × 11 × 820279. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 32, 15, 173, 704, 2335, 6998, 40319, 91413, 120146, 655071, 2631200, 1067714, 5519963, 66126591, 239088883, 419332403, 8743414777, 5661980805

Basic calculations (n = 81207621)

Multiplication

n×y

n×2	162415242
n×3	243622863
n×4	324830484
n×5	406038105

Division

n÷y

n÷2	40603810.5
n÷3	27069207
n÷3	20301905.25
n÷5	16241524.2

Exponentiation

n^y

n²	6594677708479641
n³	5.3553808796736E+23
n⁴	4.3489774078718E+31
n⁵	3.5317010907602E+39

Nth Root

^y√n

²√n	9011.527118086
³√n	433.04423629825
⁴√n	94.92906361113
⁵√n	38.187335570696

Divisors of 81207621

1, 9, 11, 99, 820279, 7382511, 9023069, 81207621

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	-81207620	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 81207621 can be divided by 8 positive divisors. The sum of these divisors (counting 81207621) is 1, the average is 0.125.

Base conversion 81207621

Base	System	Value
2	Binary	100110101110010000101000101
3	Ternary	12122210202220200
4	Quaternary	10311302011011
5	Quinary	131242120441
6	Senary	12020321113
8	Octal	465620505
10	Decimal	81207621
12	Duodecimal	23243199
16	Hexadecimal	4d72145
20	Vigesimal	157aj11
36	Base36	1cck79

Cryptographic Hash Functions

md5	5501ed16b9bc17f3c023d890e84700fe
sha1	1b3233e6adcc55b16f9e9d04fb30a7cfd0f2ce9c
sha256	748d2a2a38e7fae04899153cba287d2aa093d1e63bfe138174a5c8e37181c59b
sha512	a00dcbce6db28efcc6e8d5a0d50194f77c38620a1db5782b943c77d29a0328547efccddde99b6c596b3d7a9a256dca07457fe7a6256ca40e8f88a3f9e3510212
ripemd-160	f6371cc9a1a640f53591860bac3ad8f61ad1e175

81207621 as geometric shapes

Circle

Radius = n

Diameter	162415242
Circumference	510242531.09821
Area	2.0717791041752E+16

Sphere

Radius = n

Volume	2.2432566971677E+24
Surface area	8.2871164167008E+16
Circumference	510242531.09821

Square

Length = n

Perimeter	324830484
Area	6594677708479641
Diagonal	114844918.98625

Cube

Length = n

Surface area	39568066250877846
Volume	5.3553808796736E+23
Space diagonal	140655725.5338

Equilateral Triangle

Length = n

Perimeter	243622863
Area	2.8555792126572E+15
Altitude	70327862.766899

Triangular Pyramid

Length = n

Surface area	2.8555792126572E+15
Volume	6.31137689309E+22
Height	38281639.662085