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

81363945 (number)

81363945 is an odd 8-digits composite number following 81363944 and preceding 81363946. In scientific notation, it is written as 8.1363945 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 40056000 positive integers (up to 81363945) that are relatively prime to 81363945.

Interesting facts

81363945 has 8 divisors, whose sum is 93464448
The reverse of 81363945 is 54936318
Previous prime number is 15

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

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

Notation

Scientific notation	8.1363945 × 10^7
Engineering notation	8.1363945 × 10^6

Prime Factorization of 81363945

Prime Factorization 13 × 15 × 417251

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81363945	Product of the distinct prime numbers

The prime factorization of 81363945 is 13 × 15 × 417251. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 7, 69, 71, 179, 592, 2090, 499, 12578, 2471, 619492, 240068, 2544781, 918596, 81730741, 14064603, 24229022, 89397753, 7806872629, 1813329467

Basic calculations (n = 81363945)

Multiplication

n×y

n×2	162727890
n×3	244091835
n×4	325455780
n×5	406819725

Division

n÷y

n÷2	40681972.5
n÷3	27121315
n÷3	20340986.25
n÷5	16272789

Exponentiation

n^y

n²	6620091545963025
n³	5.386367644407E+23
n⁴	4.3825612076931E+31
n⁵	3.5658246906188E+39

Nth Root

^y√n

²√n	9020.19650562
³√n	433.32192705019
⁴√n	94.974715085753
⁵√n	38.202026324357

Divisors of 81363945

1, 13, 15, 195, 417251, 5424263, 6258765, 81363945

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	-81363944	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 81363945 can be divided by 8 positive divisors. The sum of these divisors (counting 81363945) is 1, the average is 0.125.

Base conversion 81363945

Base	System	Value
2	Binary	100110110011000001111101001
3	Ternary	12200002201100110
4	Quaternary	10312120033221
5	Quinary	131312121240
6	Senary	12023524533
8	Octal	466301751
10	Decimal	81363945
12	Duodecimal	232b9749
16	Hexadecimal	4d983e9
20	Vigesimal	158a9h5
36	Base36	1cfwtl

Cryptographic Hash Functions

md5	3224fc707177d678e248cde99de89a6f
sha1	e8c980a81782f48c07eb5feceb17c74240853ee9
sha256	611d95a41b35f9636de0d09be59925b3a99bb4445fdd8e6cd10e29c1f18a94fe
sha512	9f17770278030132c93642090ef1fb0678d55776b701106ea541b17704429d9c062f6bf21bcf930975231269d19a6bddedb816a9b97cd838c77dcf902cd3abb5
ripemd-160	adbe36158b7be1f858720efc983b09813e59c3e9

81363945 as geometric shapes

Circle

Radius = n

Diameter	162727890
Circumference	511224743.75817
Area	2.0797630966889E+16

Sphere

Radius = n

Volume	2.256236402827E+24
Surface area	8.3190523867557E+16
Circumference	511224743.75817

Square

Length = n

Perimeter	325455780
Area	6620091545963025
Diagonal	115065994.50718

Cube

Length = n

Surface area	39720549275778150
Volume	5.386367644407E+23
Space diagonal	140926486.64424

Equilateral Triangle

Length = n

Perimeter	244091835
Area	2.8665837270913E+15
Altitude	70463243.32212

Triangular Pyramid

Length = n

Surface area	2.8665837270913E+15
Volume	6.34789514554E+22
Height	38355331.502393