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

81874491 (number)

81874491 is an odd 8-digits composite number following 81874490 and preceding 81874492. In scientific notation, it is written as 8.1874491 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 54582992 positive integers (up to 81874491) that are relatively prime to 81874491.

Interesting facts

81874491 has 4 divisors, whose sum is 109165992
The reverse of 81874491 is 19447818
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

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

Notation

Scientific notation	8.1874491 × 10^7
Engineering notation	8.1874491 × 10^6

Prime Factorization of 81874491

Prime Factorization 3 × 27291497

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81874491	Product of the distinct prime numbers

The prime factorization of 81874491 is 3 × 27291497. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 3, 81, 61, 565, 585, 243, 5097, 32577, 51440, 878960, 645710, 5733220, 3010724, 28445154, 78621847, 39092702, 107899020, 7714354484, 2195123545

Basic calculations (n = 81874491)

Multiplication

n×y

n×2	163748982
n×3	245623473
n×4	327497964
n×5	409372455

Division

n÷y

n÷2	40937245.5
n÷3	27291497
n÷3	20468622.75
n÷5	16374898.2

Exponentiation

n^y

n²	6703432276509081
n³	5.4884010559215E+23
n⁴	4.4936004285744E+31
n⁵	3.6791124784691E+39

Nth Root

^y√n

²√n	9048.4524091139
³√n	434.22638030016
⁴√n	95.123353647324
⁵√n	38.249848788439

Divisors of 81874491

1, 3, 27291497, 81874491

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	-81874490	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 81874491 can be divided by 4 positive divisors. The sum of these divisors (counting 81874491) is 1, the average is 0.25.

Base conversion 81874491

Base	System	Value
2	Binary	100111000010100111000111011
3	Ternary	12201001122200120
4	Quaternary	10320110320323
5	Quinary	131424440431
6	Senary	12042504323
8	Octal	470247073
10	Decimal	81874491
12	Duodecimal	235050a3
16	Hexadecimal	4e14e3b
20	Vigesimal	15be64b
36	Base36	1cqurf

Cryptographic Hash Functions

md5	0534f5550c445cd14834da9070e84b65
sha1	6a398a0cdc0a0464b29a8c7e4667c5e1ac388446
sha256	f0ab5bb8222bf63853d415ee71da333f418ea465e60af5beb9235507fd9b4a5b
sha512	1efe70438033237be57f7165116b5d46149c23380ecb66e656baee14a04cf752a533343ec1f0e83c64a07b3a8716f01b2d50a07b6ac49701cc70a187a02c52e0
ripemd-160	5a2af3b1d112ba9e77ad5ac9f415e2ac36e27205

81874491 as geometric shapes

Circle

Radius = n

Diameter	163748982
Circumference	514432598.88401
Area	2.1059453593718E+16

Sphere

Radius = n

Volume	2.2989760582983E+24
Surface area	8.4237814374871E+16
Circumference	514432598.88401

Square

Length = n

Perimeter	327497964
Area	6703432276509081
Diagonal	115788015.58459

Cube

Length = n

Surface area	40220593659054486
Volume	5.4884010559215E+23
Space diagonal	141810778.25584

Equilateral Triangle

Length = n

Perimeter	245623473
Area	2.9026713220027E+15
Altitude	70905389.12792

Triangular Pyramid

Length = n

Surface area	2.9026713220027E+15
Volume	6.4681426741892E+22
Height	38596005.194865