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

81640166 (number)

81640166 is an even 8-digits composite number following 81640165 and preceding 81640167. In scientific notation, it is written as 8.1640166 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 40820082 positive integers (up to 81640166) that are relatively prime to 81640166.

Interesting facts

81640166 has 4 divisors, whose sum is 122460252
The reverse of 81640166 is 66104618
Previous prime number is 2

Basic properties

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

Name

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

Notation

Scientific notation	8.1640166 × 10^7
Engineering notation	8.1640166 × 10^6

Prime Factorization of 81640166

Prime Factorization 2 × 40820083

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81640166	Product of the distinct prime numbers

The prime factorization of 81640166 is 2 × 40820083. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 8, 76, 47, 668, 1, 688, 3160, 66763, 69666, 485806, 741749, 8019248, 3587550, 22458501, 10767860, 641067368, 171644960, 1967265559, 609246588

Basic calculations (n = 81640166)

Multiplication

n×y

n×2	163280332
n×3	244920498
n×4	326560664
n×5	408200830

Division

n÷y

n÷2	40820083
n÷3	27213388.666667
n÷3	20410041.5
n÷5	16328033.2

Exponentiation

n^y

n²	6665116704507556
n³	5.4414123416537E+23
n⁴	4.4423780684706E+31
n⁵	3.626764829447E+39

Nth Root

^y√n

²√n	9035.4947844598
³√n	433.8117321412
⁴√n	95.055219659205
⁵√n	38.227929448006

Divisors of 81640166

1, 2, 40820083, 81640166

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	-81640165	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 81640166 can be divided by 4 positive divisors. The sum of these divisors (counting 81640166) is 1, the average is 0.25.

Base conversion 81640166

Base	System	Value
2	Binary	100110111011011101011100110
3	Ternary	12200121202020212
4	Quaternary	10313123223212
5	Quinary	131344441131
6	Senary	12033455422
8	Octal	467335346
10	Decimal	81640166
12	Duodecimal	23411572
16	Hexadecimal	4ddbae6
20	Vigesimal	15a5086
36	Base36	1cltye

Cryptographic Hash Functions

md5	bab9068628f020c79b6ee63ec4b8a0f0
sha1	288abd566be29981e4239d596250ce5c929f3d41
sha256	d0b6bcedec45db011fec7f4bb8a9f66688a34ff304b170dca6fb4e9791b0c924
sha512	a73b9cff1da8fc909284043e42d6c732fa02f657b24d31cc7e962c9c69b589414f0989cd05cc63026ee3cacbb8c5368c4d66b2d8b5f76112ca38f9fc1054b4e7
ripemd-160	b5a9a4c90504921a249cabf3106e05b359c6da30

81640166 as geometric shapes

Circle

Radius = n

Diameter	163280332
Circumference	512960291.4869
Area	2.09390816742E+16

Sphere

Radius = n

Volume	2.2792934716923E+24
Surface area	8.3756326696798E+16
Circumference	512960291.4869

Square

Length = n

Perimeter	326560664
Area	6665116704507556
Diagonal	115456629.99159

Cube

Length = n

Surface area	39990700227045336
Volume	5.4414123416537E+23
Space diagonal	141404915.45036

Equilateral Triangle

Length = n

Perimeter	244920498
Area	2.8860801926458E+15
Altitude	70702457.725179

Triangular Pyramid

Length = n

Surface area	2.8860801926458E+15
Volume	6.4127659433592E+22
Height	38485543.33053