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

81372 (number)

81372 is an even 5-digits composite number following 81371 and preceding 81373. In scientific notation, it is written as 8.1372 × 10^4. The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors. There are 27120 positive integers (up to 81372) that are relatively prime to 81372.

Interesting facts

81372 has 12 divisors, whose sum is 189896
The reverse of 81372 is 27318
Previous prime number is 3

Basic properties

Is Prime? no
Number parity even
Number length 5
Sum of Digits 21
Digital Root 3

Name

Name	eighty-one thousand three hundred seventy-two

Notation

Scientific notation	8.1372 × 10^4
Engineering notation	8.1372 × 10^3

Prime Factorization of 81372

Prime Factorization 2 × 2 × 3 × 6781

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	40686	Product of the distinct prime numbers

The prime factorization of 81372 is 2 × 2 × 3 × 6781. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 44, 63, 794, 891, 7709, 3552, 96962, 62761, 44657, 325217, 1000352, 1313650, 3521684, 8933038, 400397441, 460127495, 8080666715, 5837006519

Basic calculations (n = 81372)

Multiplication

n×y

n×2	162744
n×3	244116
n×4	325488
n×5	406860

Division

n÷y

n÷2	40686
n÷3	27124
n÷3	20343
n÷5	16274.4

Exponentiation

n^y

n²	6621402384
n³	538796754790848
n⁴	4.3842969530841E+19
n⁵	3.5675901166636E+24

Nth Root

^y√n

²√n	285.25777815863
³√n	43.333622614768
⁴√n	16.889576020689
⁵√n	9.5961051489085

Divisors of 81372

1, 2, 3, 4, 6, 12, 6781, 13562, 20343, 27124, 40686, 81372

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81371	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81372 can be divided by 12 positive divisors. The sum of these divisors (counting 81372) is 1, the average is 0.083333333333333.

Base conversion 81372

Base	System	Value
2	Binary	10011110111011100
3	Ternary	11010121210
4	Quaternary	103313130
5	Quinary	10100442
6	Senary	1424420
8	Octal	236734
10	Decimal	81372
12	Duodecimal	3b110
16	Hexadecimal	13ddc
20	Vigesimal	a38c
36	Base36	1qsc

Cryptographic Hash Functions

md5	c18a6d7bd76c546e0812e3f7cdf804e1
sha1	f8dbec66322caf3b59f2b4f63cd9fc5e8fde49a0
sha256	94a714820e2133fdb9e82b705f2ddeeff8672ab0cc565137ea4a659d96517d99
sha512	8b915b0742173817e21218d84180b51189a529bc28f00df06d9cc705d7ae55ed2c9c1a9762ba34a9a77f417010bccdea8adf3998cd3929d98cb82192604784fc
ripemd-160	fcaf35ab46ea4371be16917eb3e0b09dd6fd7b8f

81372 as geometric shapes

Circle

Radius = n

Diameter	162744
Circumference	511275.35481582
Area	20801749086.036

Sphere

Radius = n

Volume	2.2569065688386E+15
Surface area	83206996344.145
Circumference	511275.35481582

Square

Length = n

Perimeter	325488
Area	6621402384
Diagonal	115077.38599742

Cube

Length = n

Surface area	39728414304
Volume	538796754790848
Space diagonal	140940.43831349

Equilateral Triangle

Length = n

Perimeter	244116
Area	2867151336.6114
Altitude	70470.219156747

Triangular Pyramid

Length = n

Surface area	2867151336.6114
Volume	63497806498986
Height	38359.128665808