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

81490181 (number)

81490181 is an odd 8-digits composite number following 81490180 and preceding 81490182. In scientific notation, it is written as 8.1490181 × 10^7. The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors. There are 81420000 positive integers (up to 81490181) that are relatively prime to 81490181.

Interesting facts

81490181 has 4 divisors, whose sum is 81560364
The reverse of 81490181 is 18109418
Previous prime number is 1181

Basic properties

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

Name

Name	eighty-one million four hundred ninety thousand one hundred eighty-one

Notation

Scientific notation	8.1490181 × 10^7
Engineering notation	8.1490181 × 10^6

Prime Factorization of 81490181

Prime Factorization 1181 × 69001

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81490181	Product of the distinct prime numbers

The prime factorization of 81490181 is 1181 × 69001. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 94, 54, 284, 227, 1931, 1899, 38898, 57069, 995168, 193807, 8952412, 2429844, 23659942, 84298398, 861784383, 214590098, 9741667938, 9206285783

Basic calculations (n = 81490181)

Multiplication

n×y

n×2	162980362
n×3	244470543
n×4	325960724
n×5	407450905

Division

n÷y

n÷2	40745090.5
n÷3	27163393.666667
n÷3	20372545.25
n÷5	16298036.2

Exponentiation

n^y

n²	6640649599412761
n³	5.4114773781372E+23
n⁴	4.4098227102181E+31
n⁵	3.5935725083358E+39

Nth Root

^y√n

²√n	9027.1912021403
³√n	433.54591062479
⁴√n	95.011531942919
⁵√n	38.213873048251

Divisors of 81490181

1, 1181, 69001, 81490181

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	-81490180	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 81490181 can be divided by 4 positive divisors. The sum of these divisors (counting 81490181) is 1, the average is 0.25.

Base conversion 81490181

Base	System	Value
2	Binary	100110110110111000100000101
3	Ternary	12200100010111212
4	Quaternary	10312313010011
5	Quinary	131330141211
6	Senary	12030341205
8	Octal	466670405
10	Decimal	81490181
12	Duodecimal	2335a805
16	Hexadecimal	4db7105
20	Vigesimal	1596591
36	Base36	1cim85

Cryptographic Hash Functions

md5	3d2f9982af3dc42d67c9bebbed628ab9
sha1	418677839ec628dcbda6e20c8b59780395ac1d78
sha256	f398c5522b34d3bb2d0ff1efdfa2acd993fb8ef7717dcfed646306707cb1ed0e
sha512	37501cfa7d545a6552c5d8f329215e284d2970cfb0fd7591f45d33301b43287365f580a731d5a3d5475e657b5ba2488ed9d9e0dfe5c31ab4f23441fdc106d78c
ripemd-160	52e1735d28e317ee9ab3c6507d15ecf413d6debd

81490181 as geometric shapes

Circle

Radius = n

Diameter	162980362
Circumference	512017907.93861
Area	2.0862215996579E+16

Sphere

Radius = n

Volume	2.2667543434964E+24
Surface area	8.3448863986317E+16
Circumference	512017907.93861

Square

Length = n

Perimeter	325960724
Area	6640649599412761
Diagonal	115244519.17044

Cube

Length = n

Surface area	39843897596476566
Volume	5.4114773781372E+23
Space diagonal	141145133.80998

Equilateral Triangle

Length = n

Perimeter	244470543
Area	2.8754856253612E+15
Altitude	70572566.904992

Triangular Pyramid

Length = n

Surface area	2.8754856253612E+15
Volume	6.3774872505307E+22
Height	38414839.723479