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

82161721 (number)

82161721 is an odd 8-digits composite number following 82161720 and preceding 82161722. In scientific notation, it is written as 8.2161721 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 82081152 positive integers (up to 82161721) that are relatively prime to 82161721.

Interesting facts

82161721 has 4 divisors, whose sum is 82242292
The reverse of 82161721 is 12716128
Previous prime number is 1033

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	eighty-two million one hundred sixty-one thousand seven hundred twenty-one

Notation

Scientific notation	8.2161721 × 10^7
Engineering notation	8.2161721 × 10^6

Prime Factorization of 82161721

Prime Factorization 1033 × 79537

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	82161721	Product of the distinct prime numbers

The prime factorization of 82161721 is 1033 × 79537. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 7, 32, 57, 656, 854, 6883, 6145, 24088, 56062, 540134, 119651, 1990735, 7700893, 56338332, 2176157, 105456875, 636323464, 1780542944, 2914449661

Basic calculations (n = 82161721)

Multiplication

n×y

n×2	164323442
n×3	246485163
n×4	328646884
n×5	410808605

Division

n÷y

n÷2	41080860.5
n÷3	27387240.333333
n÷3	20540430.25
n÷5	16432344.2

Exponentiation

n^y

n²	6750548397681841
n³	5.5463667404733E+23
n⁴	4.5569903669445E+31
n⁵	3.7441017112858E+39

Nth Root

^y√n

²√n	9064.3102881576
³√n	434.7335682959
⁴√n	95.206671447738
⁵√n	38.27664863605

Divisors of 82161721

1, 1033, 79537, 82161721

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	-82161720	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 82161721 can be divided by 4 positive divisors. The sum of these divisors (counting 82161721) is 1, the average is 0.25.

Base conversion 82161721

Base	System	Value
2	Binary	100111001011011000000111001
3	Ternary	12201121020200201
4	Quaternary	10321123000321
5	Quinary	132013133341
6	Senary	12053002201
8	Octal	471330071
10	Decimal	82161721
12	Duodecimal	23623361
16	Hexadecimal	4e5b039
20	Vigesimal	15da461
36	Base36	1cx0e1

Cryptographic Hash Functions

md5	69ef70577a934665c030cade36d6644b
sha1	9ebb57278908831c183ced93f1637d840c479f61
sha256	0d44394bfad2fdebebd3354ddedd3a5cffe76904e985a8f1968738b164b547a9
sha512	629b318e36ea97f09bb5931641c60f2898654953ca097d7d0bb3e3415f09e27750fa25b4ce820c66f71ea281cfeb6630f1b7394d543307191a7a7b1497a54c41
ripemd-160	e5515ccbb9ec85667ef0d56e8c015a58b684fdff

82161721 as geometric shapes

Circle

Radius = n

Diameter	164323442
Circumference	516237318.19979
Area	2.120747325386E+16

Sphere

Radius = n

Volume	2.3232566674648E+24
Surface area	8.4829893015438E+16
Circumference	516237318.19979

Square

Length = n

Perimeter	328646884
Area	6750548397681841
Diagonal	116194220.14611

Cube

Length = n

Surface area	40503290386091046
Volume	5.5463667404733E+23
Space diagonal	142308275.2093

Equilateral Triangle

Length = n

Perimeter	246485163
Area	2.9230732009344E+15
Altitude	71154137.604649

Triangular Pyramid

Length = n

Surface area	2.9230732009344E+15
Volume	6.5364558885604E+22
Height	38731406.715371