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

81640369 (number)

81640369 is an odd 8-digits composite number following 81640368 and preceding 81640370. In scientific notation, it is written as 8.1640369 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 81603940 positive integers (up to 81640369) that are relatively prime to 81640369.

Interesting facts

81640369 has 4 divisors, whose sum is 81676800
The reverse of 81640369 is 96304618
Previous prime number is 2399

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	eighty-one million six hundred forty thousand three hundred sixty-nine

Notation

Scientific notation	8.1640369 × 10^7
Engineering notation	8.1640369 × 10^6

Prime Factorization of 81640369

Prime Factorization 2399 × 34031

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81640369	Product of the distinct prime numbers

The prime factorization of 81640369 is 2399 × 34031. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 79, 54, 330, 519, 7436, 4231, 93237, 93131, 561507, 892011, 4191322, 961419, 3461257, 75934916, 843066974, 456760861, 9815961161, 4752948059

Basic calculations (n = 81640369)

Multiplication

n×y

n×2	163280738
n×3	244921107
n×4	326561476
n×5	408201845

Division

n÷y

n÷2	40820184.5
n÷3	27213456.333333
n÷3	20410092.25
n÷5	16328073.8

Exponentiation

n^y

n²	6665149850456161
n³	5.4414529323154E+23
n⁴	4.4424222529036E+31
n⁵	3.6268099198086E+39

Nth Root

^y√n

²√n	9035.5060179273
³√n	433.81209170158
⁴√n	95.055278748354
⁵√n	38.227948458899

Divisors of 81640369

1, 2399, 34031, 81640369

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81640368	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81640369 can be divided by 4 positive divisors. The sum of these divisors (counting 81640369) is 1, the average is 0.25.

Base conversion 81640369

Base	System	Value
2	Binary	100110111011011101110110001
3	Ternary	12200121202112101
4	Quaternary	10313123232301
5	Quinary	131344442434
6	Senary	12033500401
8	Octal	467335661
10	Decimal	81640369
12	Duodecimal	23411701
16	Hexadecimal	4ddbbb1
20	Vigesimal	15a50i9
36	Base36	1clu41

Cryptographic Hash Functions

md5	892e14ad5b2ff1d23698b79ef5f0f6b1
sha1	4993ae7ed669b08ce1c5a91ed2a95d947d3c3601
sha256	f1b687caf7505f1af160086e28e1248cd69d79f4c7e80545e61dd3669052400c
sha512	4e845076562546a574edd7f6ef5ce624398a29572dbd9fc27cda4f09ddf42d53e71ab21cfc1db207074ac03a33fc5ea5ebd8be292edbf78bba519ec6b0812c20
ripemd-160	7167cf230caad7a47a9677b01562bd470a71b86e

81640369 as geometric shapes

Circle

Radius = n

Diameter	163280738
Circumference	512961566.97352
Area	2.0939185805268E+16

Sphere

Radius = n

Volume	2.2793104742689E+24
Surface area	8.3756743221073E+16
Circumference	512961566.97352

Square

Length = n

Perimeter	326561476
Area	6665149850456161
Diagonal	115456917.07694

Cube

Length = n

Surface area	39990899102736966
Volume	5.4414529323154E+23
Space diagonal	141405267.05667

Equilateral Triangle

Length = n

Perimeter	244921107
Area	2.8860945452625E+15
Altitude	70702633.528336

Triangular Pyramid

Length = n

Surface area	2.8860945452625E+15
Volume	6.4128137799127E+22
Height	38485639.025648