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

81640115 (number)

81640115 is an odd 8-digits composite number following 81640114 and preceding 81640116. In scientific notation, it is written as 8.1640115 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 65269792 positive integers (up to 81640115) that are relatively prime to 81640115.

Interesting facts

81640115 has 8 divisors, whose sum is 98031600
The reverse of 81640115 is 51104618
Previous prime number is 1877

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8

Name

Name	eighty-one million six hundred forty thousand one hundred fifteen

Notation

Scientific notation	8.1640115 × 10^7
Engineering notation	8.1640115 × 10^6

Prime Factorization of 81640115

Prime Factorization 5 × 1877 × 8699

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81640115	Product of the distinct prime numbers

The prime factorization of 81640115 is 5 × 1877 × 8699. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 2, 52, 33, 819, 43, 3696, 7086, 3364, 45568, 298197, 675391, 5173913, 1777930, 99839535, 89992293, 919592348, 291756436, 9201335692, 9998706184

Basic calculations (n = 81640115)

Multiplication

n×y

n×2	163280230
n×3	244920345
n×4	326560460
n×5	408200575

Division

n÷y

n÷2	40820057.5
n÷3	27213371.666667
n÷3	20410028.75
n÷5	16328023

Exponentiation

n^y

n²	6665108377213225
n³	5.4414021440315E+23
n⁴	4.4423669679998E+31
n⁵	3.626753501397E+39

Nth Root

^y√n

²√n	9035.4919622564
³√n	433.8116418082
⁴√n	95.055204814131
⁵√n	38.227924671865

Divisors of 81640115

1, 5, 1877, 8699, 9385, 43495, 16328023, 81640115

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	-81640114	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 81640115 can be divided by 8 positive divisors. The sum of these divisors (counting 81640115) is 1, the average is 0.125.

Base conversion 81640115

Base	System	Value
2	Binary	100110111011011101010110011
3	Ternary	12200121202011222
4	Quaternary	10313123222303
5	Quinary	131344440430
6	Senary	12033455255
8	Octal	467335263
10	Decimal	81640115
12	Duodecimal	2341152b
16	Hexadecimal	4ddbab3
20	Vigesimal	15a505f
36	Base36	1cltwz

Cryptographic Hash Functions

md5	484baf5fc3d2ac7c4f8cd1591b2f99ef
sha1	ec67b9866ebac1089a980f7320fadf283cbf8ffe
sha256	9ff58d3c493c12d3eabe48a2ffba36390a66d3f74edf434701699763cbce9a5c
sha512	1fbe42668ff5850635bd9976504f9caa52508b1dd9e030723211bba90e239bc391513562929a62f536887384485efec08444a58014f0b115b523aaa4489b3124
ripemd-160	fd1372e9774ddd32408f4c3dfa83943264a888f2

81640115 as geometric shapes

Circle

Radius = n

Diameter	163280230
Circumference	512959971.04445
Area	2.0939055513233E+16

Sphere

Radius = n

Volume	2.2792892001223E+24
Surface area	8.3756222052931E+16
Circumference	512959971.04445

Square

Length = n

Perimeter	326560460
Area	6665108377213225
Diagonal	115456557.8667

Cube

Length = n

Surface area	39990650263279350
Volume	5.4414021440315E+23
Space diagonal	141404827.11577

Equilateral Triangle

Length = n

Perimeter	244920345
Area	2.8860765868216E+15
Altitude	70702413.557883

Triangular Pyramid

Length = n

Surface area	2.8860765868216E+15
Volume	6.4127539253462E+22
Height	38485519.2889