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

81322018 (number)

81322018 is an even 8-digits composite number following 81322017 and preceding 81322019. In scientific notation, it is written as 8.1322018 × 10^7. The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors. There are 40595940 positive integers (up to 81322018) that are relatively prime to 81322018.

Interesting facts

81322018 has 8 divisors, whose sum is 122178240
The reverse of 81322018 is 81022318
Previous prime number is 631

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	eighty-one million three hundred twenty-two thousand eighteen

Notation

Scientific notation	8.1322018 × 10^7
Engineering notation	8.1322018 × 10^6

Prime Factorization of 81322018

Prime Factorization 2 × 631 × 64439

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81322018	Product of the distinct prime numbers

The prime factorization of 81322018 is 2 × 631 × 64439. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 9, 52, 38, 517, 620, 22, 2386, 18566, 16960, 469730, 740830, 5293642, 8151336, 72124522, 35993388, 936998163, 849456037, 9728935323, 1800903311

Basic calculations (n = 81322018)

Multiplication

n×y

n×2	162644036
n×3	243966054
n×4	325288072
n×5	406610090

Division

n÷y

n÷2	40661009
n÷3	27107339.333333
n÷3	20330504.5
n÷5	16264403.6

Exponentiation

n^y

n²	6613270611592324
n³	5.3780451171478E+23
n⁴	4.3735348182151E+31
n⁵	3.5566467721051E+39

Nth Root

^y√n

²√n	9017.8721436933
³√n	433.24748371628
⁴√n	94.962477556629
⁵√n	38.198088396808

Divisors of 81322018

1, 2, 631, 1262, 64439, 128878, 40661009, 81322018

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	-81322017	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 81322018 can be divided by 8 positive divisors. The sum of these divisors (counting 81322018) is 1, the average is 0.125.

Base conversion 81322018

Base	System	Value
2	Binary	100110110001110000000100010
3	Ternary	12200000120211121
4	Quaternary	10312032000202
5	Quinary	131304301033
6	Senary	12023002454
8	Octal	466160042
10	Decimal	81322018
12	Duodecimal	2329942a
16	Hexadecimal	4d8e022
20	Vigesimal	158550i
36	Base36	1cf0gy

Cryptographic Hash Functions

md5	1a924e3ea424107621eb2bcc1aa19d26
sha1	04c2a454a6614a25d04dafab79a45dbc29762bf7
sha256	f6f1548154604e7e32cedb26d2707a1932f643653607bd1bc4b7dd7fd311d0eb
sha512	32204f005968af18e0a7965e6ec864e858b41199105fbf5caffe4198fc678cef262b543e58918636ae4792b18a22307c0532ecb6800fcdea26862dc93a0d7782
ripemd-160	e7961932e1166ec54ef933cad625c4323a393339

81322018 as geometric shapes

Circle

Radius = n

Diameter	162644036
Circumference	510961308.64779
Area	2.077620236958E+16

Sphere

Radius = n

Volume	2.2527502707608E+24
Surface area	8.3104809478319E+16
Circumference	510961308.64779

Square

Length = n

Perimeter	325288072
Area	6613270611592324
Diagonal	115006700.77515

Cube

Length = n

Surface area	39679623669553944
Volume	5.3780451171478E+23
Space diagonal	140853866.95003

Equilateral Triangle

Length = n

Perimeter	243966054
Area	2.86363017587E+15
Altitude	70426933.475015

Triangular Pyramid

Length = n

Surface area	2.86363017587E+15
Volume	6.338086953104E+22
Height	38335566.92505