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

81444013 (number)

81444013 is an odd 8-digits composite number following 81444012 and preceding 81444014. In scientific notation, it is written as 8.1444013 × 10^7. The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors. There are 63742464 positive integers (up to 81444013) that are relatively prime to 81444013.

Interesting facts

81444013 has 16 divisors, whose sum is 99003520
The reverse of 81444013 is 31044418
Previous prime number is 6313

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	eighty-one million four hundred forty-four thousand thirteen

Notation

Scientific notation	8.1444013 × 10^7
Engineering notation	8.1444013 × 10^6

Prime Factorization of 81444013

Prime Factorization 7 × 19 × 6313 × 97

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	81444013	Product of the distinct prime numbers

The prime factorization of 81444013 is 7 × 19 × 6313 × 97. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 6, 46, 100, 353, 830, 7603, 4485, 46065, 63996, 168210, 667562, 7795423, 1180116, 68551165, 3202525, 263553122, 630029479, 719113990, 3110478370

Basic calculations (n = 81444013)

Multiplication

n×y

n×2	162888026
n×3	244332039
n×4	325776052
n×5	407220065

Division

n÷y

n÷2	40722006.5
n÷3	27148004.333333
n÷3	20361003.25
n÷5	16288802.6

Exponentiation

n^y

n²	6633127253544169
n³	5.4022850226831E+23
n⁴	4.399837716171E+31
n⁵	3.5834044015372E+39

Nth Root

^y√n

²√n	9024.633676776
³√n	433.46402047747
⁴√n	94.998071963467
⁵√n	38.209542077282

Divisors of 81444013

1, 7, 19, 97, 133, 679, 1843, 6313, 12901, 44191, 119947, 612361, 839629, 4286527, 11634859, 81444013

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81444012	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81444013 can be divided by 16 positive divisors. The sum of these divisors (counting 81444013) is 1, the average is 0.0625.

Base conversion 81444013

Base	System	Value
2	Binary	100110110101011110010101101
3	Ternary	12200020210011221
4	Quaternary	10312223302231
5	Quinary	131322202023
6	Senary	12025343341
8	Octal	466536255
10	Decimal	81444013
12	Duodecimal	23337b51
16	Hexadecimal	4dabcad
20	Vigesimal	1590a0d
36	Base36	1chmlp

Cryptographic Hash Functions

md5	f66ad7fac4756432532c7d12bda4583b
sha1	3b3c153c91849e8c66b09c328779bf4ec6dd1038
sha256	804d6f11ab9c57ab84b92d573d56d1ed5a329141e90c5b8f18498d6519939cd2
sha512	ca6b198886831ea2448f9a6272c3bf4859400a3cb34614eb186c46025a69cb1158cfe7d7f61c79ad96518fa9ce37c12f0a44c418b6b0311a8c845f48fa4a1644
ripemd-160	c7e7b5c9d8f3fc27d2d76e9c528ee7f319f2d3a8

81444013 as geometric shapes

Circle

Radius = n

Diameter	162888026
Circumference	511727825.83934
Area	2.0838583850061E+16

Sphere

Radius = n

Volume	2.2629038586479E+24
Surface area	8.3354335400242E+16
Circumference	511727825.83934

Square

Length = n

Perimeter	325776052
Area	6633127253544169
Diagonal	115179227.75869

Cube

Length = n

Surface area	39798763521265014
Volume	5.4022850226831E+23
Space diagonal	141065168.4883

Equilateral Triangle

Length = n

Perimeter	244332039
Area	2.8722283540521E+15
Altitude	70532584.24415

Triangular Pyramid

Length = n

Surface area	2.8722283540521E+15
Volume	6.3666539557362E+22
Height	38393075.919564