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

81661532 (number)

81661532 is an even 8-digits composite number following 81661531 and preceding 81661533. In scientific notation, it is written as 8.1661532 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors. There are 40830764 positive integers (up to 81661532) that are relatively prime to 81661532.

Interesting facts

81661532 has 6 divisors, whose sum is 142907688
The reverse of 81661532 is 23516618
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	eighty-one million six hundred sixty-one thousand five hundred thirty-two

Notation

Scientific notation	8.1661532 × 10^7
Engineering notation	8.1661532 × 10^6

Prime Factorization of 81661532

Prime Factorization 2 × 2 × 20415383

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	40830766	Product of the distinct prime numbers

The prime factorization of 81661532 is 2 × 2 × 20415383. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 69, 40, 179, 264, 8397, 141, 16793, 51205, 90328, 288061, 9596594, 9636538, 65777191, 89126840, 710698720, 449280973, 6429157642, 2780742080

Basic calculations (n = 81661532)

Multiplication

n×y

n×2	163323064
n×3	244984596
n×4	326646128
n×5	408307660

Division

n÷y

n÷2	40830766
n÷3	27220510.666667
n÷3	20415383
n÷5	16332306.4

Exponentiation

n^y

n²	6668605808587024
n³	5.4456856663332E+23
n⁴	4.4470303430321E+31
n⁵	3.6315131066248E+39

Nth Root

^y√n

²√n	9036.6770441352
³√n	433.84957304501
⁴√n	95.061438260397
⁵√n	38.229930160378

Divisors of 81661532

1, 2, 4, 20415383, 40830766, 81661532

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81661531	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81661532 can be divided by 6 positive divisors. The sum of these divisors (counting 81661532) is 1, the average is 0.16666666666667.

Base conversion 81661532

Base	System	Value
2	Binary	100110111100000111001011100
3	Ternary	12200122211120012
4	Quaternary	10313200321130
5	Quinary	131401132112
6	Senary	12034142352
8	Octal	467407134
10	Decimal	81661532
12	Duodecimal	234219b8
16	Hexadecimal	4de0e5c
20	Vigesimal	15a7dgc
36	Base36	1cmafw

Cryptographic Hash Functions

md5	43b9a5e8db1901d2940878991a67d91b
sha1	486d8809b18bdbf580e752d597aee2bbe62ad05d
sha256	1dc5b7d152d2aaf1065769ba4f8cc92fcaf2e5c5d88140b6b33ebbeba8c8174f
sha512	d36ee5f23c6a96a3ef55de06144096e4ad3400bf3201952e8ab2459e9994a8526c477e726478947098f3655e909536dc58e055fdaf142ea83bae30939683cd90
ripemd-160	31810664eb1a864334ffcc949f54bbc51413ce2d

81661532 as geometric shapes

Circle

Radius = n

Diameter	163323064
Circumference	513094538.02418
Area	2.0950043017943E+16

Sphere

Radius = n

Volume	2.2810834777482E+24
Surface area	8.3800172071773E+16
Circumference	513094538.02418

Square

Length = n

Perimeter	326646128
Area	6668605808587024
Diagonal	115486846.07856

Cube

Length = n

Surface area	40011634851522144
Volume	5.4456856663332E+23
Space diagonal	141441922.44791

Equilateral Triangle

Length = n

Perimeter	244984596
Area	2.8875910190304E+15
Altitude	70720961.223956

Triangular Pyramid

Length = n

Surface area	2.8875910190304E+15
Volume	6.4178021047909E+22
Height	38495615.359522