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

81861330 (number)

81861330 is an even 8-digits composite number following 81861329 and preceding 81861331. In scientific notation, it is written as 8.1861330 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 21829680 positive integers (up to 81861330) that are relatively prime to 81861330.

Interesting facts

81861330 has 8 divisors, whose sum is 130978176
The reverse of 81861330 is 03316818
Previous prime number is 15

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one million eight hundred sixty-one thousand three hundred thirty

Notation

Scientific notation	8.1861330 × 10^7
Engineering notation	8.1861330 × 10^6

Prime Factorization of 81861330

Prime Factorization 2 × 15 × 2728711

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81861330	Product of the distinct prime numbers

The prime factorization of 81861330 is 2 × 15 × 2728711. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 7, 77, 85, 694, 523, 1254, 9387, 56067, 8004, 387962, 753189, 5401997, 5928824, 95641343, 92525715, 171261762, 306563864, 509390853, 7403348205

Basic calculations (n = 81861330)

Multiplication

n×y

n×2	163722660
n×3	245583990
n×4	327445320
n×5	409306650

Division

n÷y

n÷2	40930665
n÷3	27287110
n÷3	20465332.5
n÷5	16372266

Exponentiation

n^y

n²	6701277349368900
n³	5.4857547651821E+23
n⁴	4.4907118113165E+31
n⁵	3.6761564152107E+39

Nth Root

^y√n

²√n	9047.7251284508
³√n	434.20311233003
⁴√n	95.11953074133
⁵√n	38.248619007038

Divisors of 81861330

1, 2, 15, 30, 2728711, 5457422, 40930665, 81861330

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	-81861329	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 81861330 can be divided by 8 positive divisors. The sum of these divisors (counting 81861330) is 1, the average is 0.125.

Base conversion 81861330

Base	System	Value
2	Binary	100111000010001101011010010
3	Ternary	12201000222122010
4	Quaternary	10320101223102
5	Quinary	131424030310
6	Senary	12042323350
8	Octal	470215322
10	Decimal	81861330
12	Duodecimal	234b9556
16	Hexadecimal	4e11ad2
20	Vigesimal	15bcd6a
36	Base36	1cqklu

Cryptographic Hash Functions

md5	da4da73166cd509c134bdb23b154a269
sha1	f387c8fb02f07f1753895c070b0a2b04f048becc
sha256	6efa97c7ec951b11d8a0bd4d86d933c70b37b30d9622cde90e29a676126263b7
sha512	db682e8e6abc89f4ccf209acb32748c7a4bd9178835bbbf6710c4037791c32667e97ac3f7ed4570556531314589dab7f6776ca49a9b1b14256ce000772aee5f7
ripemd-160	bbe60d6a55a6924c28cab71fe526633fe7fd10a1

81861330 as geometric shapes

Circle

Radius = n

Diameter	163722660
Circumference	514349905.88218
Area	2.1052683690445E+16

Sphere

Radius = n

Volume	2.2978675826255E+24
Surface area	8.421073476178E+16
Circumference	514349905.88218

Square

Length = n

Perimeter	327445320
Area	6701277349368900
Diagonal	115769403.1199

Cube

Length = n

Surface area	40207664096213400
Volume	5.4857547651821E+23
Space diagonal	141787982.73516

Equilateral Triangle

Length = n

Perimeter	245583990
Area	2.9017382111794E+15
Altitude	70893991.367581

Triangular Pyramid

Length = n

Surface area	2.9017382111794E+15
Volume	6.4650239906445E+22
Height	38589801.039967