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

81372271 (number)

81372271 is an odd 8-digits composite number following 81372270 and preceding 81372272. In scientific notation, it is written as 8.1372271 × 10^7. The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors. There are 81304192 positive integers (up to 81372271) that are relatively prime to 81372271.

Interesting facts

81372271 has 4 divisors, whose sum is 81440352
The reverse of 81372271 is 17227318
Previous prime number is 1217

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4

Name

Name	eighty-one million three hundred seventy-two thousand two hundred seventy-one

Notation

Scientific notation	8.1372271 × 10^7
Engineering notation	8.1372271 × 10^6

Prime Factorization of 81372271

Prime Factorization 1217 × 66863

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81372271	Product of the distinct prime numbers

The prime factorization of 81372271 is 1217 × 66863. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 99, 39, 145, 473, 9002, 4536, 30864, 43690, 905617, 640565, 8302383, 1069634, 71832583, 12911794, 537783214, 605702438, 5266305802, 2957102982

Basic calculations (n = 81372271)

Multiplication

n×y

n×2	162744542
n×3	244116813
n×4	325489084
n×5	406861355

Division

n÷y

n÷2	40686135.5
n÷3	27124090.333333
n÷3	20343067.75
n÷5	16274454.2

Exponentiation

n^y

n²	6621446487697441
n³	5.3880213800891E+23
n⁴	4.3843553589441E+31
n⁵	3.567649524283E+39

Nth Root

^y√n

²√n	9020.6580136928
³√n	433.33670720582
⁴√n	94.977144691198
⁵√n	38.202808137611

Divisors of 81372271

1, 1217, 66863, 81372271

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	-81372270	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 81372271 can be divided by 4 positive divisors. The sum of these divisors (counting 81372271) is 1, the average is 0.25.

Base conversion 81372271

Base	System	Value
2	Binary	100110110011010010001101111
3	Ternary	12200010010202211
4	Quaternary	10312122101233
5	Quinary	131312403041
6	Senary	12024031251
8	Octal	466322157
10	Decimal	81372271
12	Duodecimal	23302527
16	Hexadecimal	4d9a46f
20	Vigesimal	158badb
36	Base36	1cg38v

Cryptographic Hash Functions

md5	724433980510e93409c4620aba8e3e53
sha1	91ec263d907882569630b67fc12a06d3a035b7c1
sha256	a5ee83b48e262d6f071df206f519a559594f63fb18b18fa1a02eaf64736469f0
sha512	04b47bf751ebb02c64e3c37559fe305f7f16d27ec66ea42c1e566fe4787c6b4826e54ad961dc37633235d20acc78f8f63834cbb57ec546d03832b0fe554fc15f
ripemd-160	17b71c84fbcbb4b2b8510a645f29c7404fe9bd28

81372271 as geometric shapes

Circle

Radius = n

Diameter	162744542
Circumference	511277057.55904
Area	2.0801887641888E+16

Sphere

Radius = n

Volume	2.2569291180097E+24
Surface area	8.3207550567553E+16
Circumference	511277057.55904

Square

Length = n

Perimeter	325489084
Area	6621446487697441
Diagonal	115077769.2493

Cube

Length = n

Surface area	39728678926184646
Volume	5.3880213800891E+23
Space diagonal	140940907.69926

Equilateral Triangle

Length = n

Perimeter	244116813
Area	2.8671704340726E+15
Altitude	70470453.849632

Triangular Pyramid

Length = n

Surface area	2.8671704340726E+15
Volume	6.3498440917319E+22
Height	38359256.416433