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

81997486 (number)

81997486 is an even 8-digits composite number following 81997485 and preceding 81997487. In scientific notation, it is written as 8.1997486 × 10^7. The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors. There are 40852560 positive integers (up to 81997486) that are relatively prime to 81997486.

Interesting facts

81997486 has 8 divisors, whose sum is 123434784
The reverse of 81997486 is 68479918
Previous prime number is 281

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7

Name

Name	eighty-one million nine hundred ninety-seven thousand four hundred eighty-six

Notation

Scientific notation	8.1997486 × 10^7
Engineering notation	8.1997486 × 10^6

Prime Factorization of 81997486

Prime Factorization 2 × 281 × 145903

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81997486	Product of the distinct prime numbers

The prime factorization of 81997486 is 2 × 281 × 145903. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 4, 36, 51, 514, 1505, 1776, 74716, 74627, 625601, 65582, 53362, 3378836, 87131675, 60388578, 137770617, 290804519, 379700896, 3192042908

Basic calculations (n = 81997486)

Multiplication

n×y

n×2	163994972
n×3	245992458
n×4	327989944
n×5	409987430

Division

n÷y

n÷2	40998743
n÷3	27332495.333333
n÷3	20499371.5
n÷5	16399497.2

Exponentiation

n^y

n²	6723587710320196
n³	5.5131728914675E+23
n⁴	4.5206631698369E+31
n⁵	3.7068301497942E+39

Nth Root

^y√n

²√n	9055.2463246452
³√n	434.44370868333
⁴√n	95.159058027311
⁵√n	38.261333967042

Divisors of 81997486

1, 2, 281, 562, 145903, 291806, 40998743, 81997486

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	-81997485	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 81997486 can be divided by 8 positive divisors. The sum of these divisors (counting 81997486) is 1, the average is 0.125.

Base conversion 81997486

Base	System	Value
2	Binary	100111000110010111010101110
3	Ternary	12201021220101221
4	Quaternary	10320302322232
5	Quinary	131442404421
6	Senary	12045253554
8	Octal	470627256
10	Decimal	81997486
12	Duodecimal	235642ba
16	Hexadecimal	4e32eae
20	Vigesimal	15c9de6
36	Base36	1cthny

Cryptographic Hash Functions

md5	e1bf592b96e9fffe2fff5f0f2a5dc665
sha1	98187448272059b8ad05eef3ca10aad739eeca75
sha256	33220ef8857823ef4941df123bcedf323065091ec0a6cd495c84e91b8fd361bc
sha512	41cf0851be7d12b0833a594e77a3cf66ff9c8c9e957001fca813672d4bd21b982a3defba7c5f3962e6ddb1c8113985a2f54aac743ad70a0afb5451d24f47d441
ripemd-160	d4615eac9a4324a9184a0932852d6d25590c6061

81997486 as geometric shapes

Circle

Radius = n

Diameter	163994972
Circumference	515205399.26086
Area	2.1122773756509E+16

Sphere

Radius = n

Volume	2.3093524605073E+24
Surface area	8.4491095026034E+16
Circumference	515205399.26086

Square

Length = n

Perimeter	327989944
Area	6723587710320196
Diagonal	115961956.7817

Cube

Length = n

Surface area	40341526261921176
Volume	5.5131728914675E+23
Space diagonal	142023811.84492

Equilateral Triangle

Length = n

Perimeter	245992458
Area	2.9113988808551E+15
Altitude	71011905.922459

Triangular Pyramid

Length = n

Surface area	2.9113988808551E+15
Volume	6.4973365623509E+22
Height	38653985.593899