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

81640243 (number)

81640243 is an odd 8-digits prime number following 81640242 and preceding 81640244. In scientific notation, it is written as 8.1640243 × 10^7. The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors. There are 81640242 positive integers (up to 81640243) that are relatively prime to 81640243.

Interesting facts

81640243 has 2 divisors, whose sum is 81640244
The reverse of 81640243 is 34204618
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	eighty-one million six hundred forty thousand two hundred forty-three

Notation

Scientific notation	8.1640243 × 10^7
Engineering notation	8.1640243 × 10^6

Prime Factorization of 81640243

Prime Factorization 81640243

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81640243	Product of the distinct prime numbers

The prime factorization of 81640243 is 81640243. Since it has a total of 1 prime factors.

Most popular turbo-numbers

10, 8, 5, 38, 717, 789, 6341, 6816, 20342, 67145, 75389, 388821, 6608483, 6902147, 99309323, 99195696, 498023419, 158664550, 8779104218, 6920567594

Basic calculations (n = 81640243)

Multiplication

n×y

n×2	163280486
n×3	244920729
n×4	326560972
n×5	408201215

Division

n÷y

n÷2	40820121.5
n÷3	27213414.333333
n÷3	20410060.75
n÷5	16328048.6

Exponentiation

n^y

n²	6665129277099049
n³	5.4414277380878E+23
n⁴	4.4423948280443E+31
n⁵	3.6267819326348E+39

Nth Root

^y√n

²√n	9035.4990454319
³√n	433.81186852624
⁴√n	95.055242072344
⁵√n	38.227936659039

Divisors of 81640243

1, 81640243

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81640244	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40820122	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9035.4991007691	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999755023	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640243 can be divided by 2 positive divisors. The sum of these divisors (counting 81640243) is 81640244, the average is 40820122.

Base conversion 81640243

Base	System	Value
2	Binary	100110111011011101100110011
3	Ternary	12200121202100201
4	Quaternary	10313123230303
5	Quinary	131344441433
6	Senary	12033500031
8	Octal	467335463
10	Decimal	81640243
12	Duodecimal	23411617
16	Hexadecimal	4ddbb33
20	Vigesimal	15a50c3
36	Base36	1clu0j

Cryptographic Hash Functions

md5	3e95b95a5eaac763f48e2f3874bd4437
sha1	1fefd7016d576f978083767445242336605753e7
sha256	c17d560f609eea23db85f95870ad494187749b7794a94bb05bf1c704b3f1f3b7
sha512	823f2337ca5500aed8bc8349583fc101ca359c8680c3f5d7c7222c7e7c042398b85fa9c06f0bd3380e0f1589a33c9c5c8d1ff78f9aee0dbba3fe2f398d8f715a
ripemd-160	a86b0b1230ed45e1a479db69c494ebbaf1e7c274

81640243 as geometric shapes

Circle

Radius = n

Diameter	163280486
Circumference	512960775.29217
Area	2.0939121172161E+16

Sphere

Radius = n

Volume	2.2792999209355E+24
Surface area	8.3756484688642E+16
Circumference	512960775.29217

Square

Length = n

Perimeter	326560972
Area	6665129277099049
Diagonal	115456738.88604

Cube

Length = n

Surface area	39990775662594294
Volume	5.4414277380878E+23
Space diagonal	141405048.81827

Equilateral Triangle

Length = n

Perimeter	244920729
Area	2.8860856367376E+15
Altitude	70702524.409135

Triangular Pyramid

Length = n

Surface area	2.8860856367376E+15
Volume	6.4127840882308E+22
Height	38485579.628678