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

81640247 (number)

81640247 is an odd 8-digits composite number following 81640246 and preceding 81640248. In scientific notation, it is written as 8.1640247 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 74082240 positive integers (up to 81640247) that are relatively prime to 81640247.

Interesting facts

81640247 has 8 divisors, whose sum is 89411280
The reverse of 81640247 is 74204618
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	8.1640247 × 10^7
Engineering notation	8.1640247 × 10^6

Prime Factorization of 81640247

Prime Factorization 13 × 59 × 106441

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81640247	Product of the distinct prime numbers

The prime factorization of 81640247 is 13 × 59 × 106441. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 2, 55, 45, 847, 172, 6397, 9290, 57139, 39682, 351385, 992154, 221194, 3739060, 67010084, 49231358, 317574839, 390090001, 6662648253, 2064339576

Basic calculations (n = 81640247)

Multiplication

n×y

n×2	163280494
n×3	244920741
n×4	326560988
n×5	408201235

Division

n÷y

n÷2	40820123.5
n÷3	27213415.666667
n÷3	20410061.75
n÷5	16328049.4

Exponentiation

n^y

n²	6665129930221009
n³	5.4414285379034E+23
n⁴	4.4423956986728E+31
n⁵	3.6267828211138E+39

Nth Root

^y√n

²√n	9035.499266781
³√n	433.81187561117
⁴√n	95.055243236662
⁵√n	38.227937033638

Divisors of 81640247

1, 13, 59, 767, 106441, 1383733, 6280019, 81640247

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	-81640246	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 81640247 can be divided by 8 positive divisors. The sum of these divisors (counting 81640247) is 1, the average is 0.125.

Base conversion 81640247

Base	System	Value
2	Binary	100110111011011101100110111
3	Ternary	12200121202100212
4	Quaternary	10313123230313
5	Quinary	131344441442
6	Senary	12033500035
8	Octal	467335467
10	Decimal	81640247
12	Duodecimal	2341161b
16	Hexadecimal	4ddbb37
20	Vigesimal	15a50c7
36	Base36	1clu0n

Cryptographic Hash Functions

md5	771d9db3e1649d92ef5d6110e3444a85
sha1	c4304e1e1f4998778548a66462007052f4aa108e
sha256	ce0d989f6b99f8740ea5e0f3685c60a25622516579bd89820b367011778e43d5
sha512	c4a3310dc4d074bc0f006bb715ac0aaf0e2cdc449405304be02f305cd25bbb7f57bd56047a26561f6e96eb9ada2f0dd7f4cc37520f45cb3c02effa52064743f8
ripemd-160	be70bd4f0535285533eee3fbc3d1f8abd6a5349d

81640247 as geometric shapes

Circle

Radius = n

Diameter	163280494
Circumference	512960800.42491
Area	2.0939123224004E+16

Sphere

Radius = n

Volume	2.2793002559615E+24
Surface area	8.3756492896015E+16
Circumference	512960800.42491

Square

Length = n

Perimeter	326560988
Area	6665129930221009
Diagonal	115456744.54289

Cube

Length = n

Surface area	39990779581326054
Volume	5.4414285379034E+23
Space diagonal	141405055.74647

Equilateral Triangle

Length = n

Perimeter	244920741
Area	2.8860859195477E+15
Altitude	70702527.873236

Triangular Pyramid

Length = n

Surface area	2.8860859195477E+15
Volume	6.4127850308224E+22
Height	38485581.514296