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

81738291 (number)

81738291 is an odd 8-digits composite number following 81738290 and preceding 81738292. In scientific notation, it is written as 8.1738291 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 53019360 positive integers (up to 81738291) that are relatively prime to 81738291.

Interesting facts

81738291 has 8 divisors, whose sum is 111930064
The reverse of 81738291 is 19283718
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	eighty-one million seven hundred thirty-eight thousand two hundred ninety-one

Notation

Scientific notation	8.1738291 × 10^7
Engineering notation	8.1738291 × 10^6

Prime Factorization of 81738291

Prime Factorization 3 × 37 × 736381

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81738291	Product of the distinct prime numbers

The prime factorization of 81738291 is 3 × 37 × 736381. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 62, 73, 453, 746, 887, 3194, 43275, 30206, 446372, 914670, 6023499, 8898377, 26802299, 27725903, 216309282, 201320173, 2694635221, 4543697596

Basic calculations (n = 81738291)

Multiplication

n×y

n×2	163476582
n×3	245214873
n×4	326953164
n×5	408691455

Division

n÷y

n÷2	40869145.5
n÷3	27246097
n÷3	20434572.75
n÷5	16347658.2

Exponentiation

n^y

n²	6681148215600681
n³	5.461056370609E+23
n⁴	4.4637741478824E+31
n⁵	3.6486127025789E+39

Nth Root

^y√n

²√n	9040.9231276458
³√n	433.98546497932
⁴√n	95.083769002106
⁵√n	38.237114420656

Divisors of 81738291

1, 3, 37, 111, 736381, 2209143, 27246097, 81738291

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	-81738290	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 81738291 can be divided by 8 positive divisors. The sum of these divisors (counting 81738291) is 1, the average is 0.125.

Base conversion 81738291

Base	System	Value
2	Binary	100110111110011101000110011
3	Ternary	12200210201212010
4	Quaternary	10313303220303
5	Quinary	131411111131
6	Senary	12035534003
8	Octal	467635063
10	Decimal	81738291
12	Duodecimal	2345a303
16	Hexadecimal	4df3a33
20	Vigesimal	15ah5eb
36	Base36	1cnxo3

Cryptographic Hash Functions

md5	16382a2837f9177f8d12b38b58f0eaa5
sha1	77f04be57765a506afa2f26cc932e71858cefd73
sha256	4bdda72f587777fb1468467b9279a4e4bb99ca9de1e4c4ab24747967d5e70e49
sha512	902f7d8784795a26f0894461b6764157bcacf0985ca990602f8d83304e62e14b1abd40490b4361a5977969ecac26ae747c69c7bd5dbe5be131a5d7691710aeb5
ripemd-160	cbc863f4d7b8392e7a5fe88e6a1a349a64d605fe

81738291 as geometric shapes

Circle

Radius = n

Diameter	163476582
Circumference	513576829.04517
Area	2.0989446151676E+16

Sphere

Radius = n

Volume	2.2875219432993E+24
Surface area	8.3957784606703E+16
Circumference	513576829.04517

Square

Length = n

Perimeter	326953164
Area	6681148215600681
Diagonal	115595399.6974

Cube

Length = n

Surface area	40086889293604086
Volume	5.461056370609E+23
Space diagonal	141574872.93585

Equilateral Triangle

Length = n

Perimeter	245214873
Area	2.8930220405796E+15
Altitude	70787436.467925

Triangular Pyramid

Length = n

Surface area	2.8930220405796E+15
Volume	6.4359166534994E+22
Height	38531799.899133