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

81749042 (number)

81749042 is an even 8-digits composite number following 81749041 and preceding 81749043. In scientific notation, it is written as 8.1749042 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 40357044 positive integers (up to 81749042) that are relatively prime to 81749042.

Interesting facts

81749042 has 8 divisors, whose sum is 124176000
The reverse of 81749042 is 24094718
Previous prime number is 79

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8

Name

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

Notation

Scientific notation	8.1749042 × 10^7
Engineering notation	8.1749042 × 10^6

Prime Factorization of 81749042

Prime Factorization 2 × 79 × 517399

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81749042	Product of the distinct prime numbers

The prime factorization of 81749042 is 2 × 79 × 517399. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 10, 86, 88, 106, 10, 8008, 1149, 66103, 6166, 38682, 527312, 5165557, 5088905, 25012908, 79781541, 920126829, 24824362, 7617009588, 3929564868

Basic calculations (n = 81749042)

Multiplication

n×y

n×2	163498084
n×3	245247126
n×4	326996168
n×5	408745210

Division

n÷y

n÷2	40874521
n÷3	27249680.666667
n÷3	20437260.5
n÷5	16349808.4

Exponentiation

n^y

n²	6682905867917764
n³	5.4632115247846E+23
n⁴	4.466123083945E+31
n⁵	3.6510128356659E+39

Nth Root

^y√n

²√n	9041.5176823363
³√n	434.00449144835
⁴√n	95.086895429056
⁵√n	38.238120229772

Divisors of 81749042

1, 2, 79, 158, 517399, 1034798, 40874521, 81749042

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	-81749041	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 81749042 can be divided by 8 positive divisors. The sum of these divisors (counting 81749042) is 1, the average is 0.125.

Base conversion 81749042

Base	System	Value
2	Binary	100110111110110010000110010
3	Ternary	12200211021121022
4	Quaternary	10313312100302
5	Quinary	131411432132
6	Senary	12040055442
8	Octal	467662062
10	Decimal	81749042
12	Duodecimal	23464582
16	Hexadecimal	4df6432
20	Vigesimal	15aicc2
36	Base36	1co5yq

Cryptographic Hash Functions

md5	cd2d0a8579b01d1f753a1e8efc624de3
sha1	791da7ce93b41ff41ac85903e173da369eca2829
sha256	376f684652dbd2ea4b92078e0cfdb7ca7711141cdcf6aa467ec82fd514d8b1b9
sha512	79bb3290ead61ce0c8aaf654a3c0d09d39843e191dcdd6e3999a40b220b68159443dc67a161fd1ba27dee48351effda9a6459ef97ab51bd854180fa55fdae6a9
ripemd-160	5ce1e2083230e73a04262b0c3676db2ba078f1cb

81749042 as geometric shapes

Circle

Radius = n

Diameter	163498084
Circumference	513644379.57041
Area	2.0994967979283E+16

Sphere

Radius = n

Volume	2.2884246921694E+24
Surface area	8.397987191713E+16
Circumference	513644379.57041

Square

Length = n

Perimeter	326996168
Area	6682905867917764
Diagonal	115610603.90741

Cube

Length = n

Surface area	40097435207506584
Volume	5.4632115247846E+23
Space diagonal	141593494.21408

Equilateral Triangle

Length = n

Perimeter	245247126
Area	2.8937831263584E+15
Altitude	70796747.107041

Triangular Pyramid

Length = n

Surface area	2.8937831263584E+15
Volume	6.4384565270528E+22
Height	38536867.969136