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

81444621 (number)

81444621 is an odd 8-digits composite number following 81444620 and preceding 81444622. In scientific notation, it is written as 8.1444621 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 51438672 positive integers (up to 81444621) that are relatively prime to 81444621.

Interesting facts

81444621 has 8 divisors, whose sum is 114308320
The reverse of 81444621 is 12644418
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one million four hundred forty-four thousand six hundred twenty-one

Notation

Scientific notation	8.1444621 × 10^7
Engineering notation	8.1444621 × 10^6

Prime Factorization of 81444621

Prime Factorization 3 × 19 × 1428853

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81444621	Product of the distinct prime numbers

The prime factorization of 81444621 is 3 × 19 × 1428853. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 33, 68, 328, 346, 1222, 7463, 64073, 69444, 150200, 143372, 5506768, 6293731, 33761710, 87731798, 204901203, 373708609, 2298606208, 7229774647

Basic calculations (n = 81444621)

Multiplication

n×y

n×2	162889242
n×3	244333863
n×4	325778484
n×5	407223105

Division

n÷y

n÷2	40722310.5
n÷3	27148207
n÷3	20361155.25
n÷5	16288924.2

Exponentiation

n^y

n²	6633226289833641
n³	5.4024060118274E+23
n⁴	4.399969101214E+31
n⁵	3.5835381586009E+39

Nth Root

^y√n

²√n	9024.667362291
³√n	433.46509911402
⁴√n	94.998249259084
⁵√n	38.209599125876

Divisors of 81444621

1, 3, 19, 57, 1428853, 4286559, 27148207, 81444621

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	-81444620	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 81444621 can be divided by 8 positive divisors. The sum of these divisors (counting 81444621) is 1, the average is 0.125.

Base conversion 81444621

Base	System	Value
2	Binary	100110110101011111100001101
3	Ternary	12200020211000110
4	Quaternary	10312223330031
5	Quinary	131322211441
6	Senary	12025350233
8	Octal	466537415
10	Decimal	81444621
12	Duodecimal	23338379
16	Hexadecimal	4dabf0d
20	Vigesimal	1590bb1
36	Base36	1chn2l

Cryptographic Hash Functions

md5	d4dae98a599c22ff26fbc56108dd20dd
sha1	7260b6efc6e68ecf6f1bceb88c72d3fbacd6c3b7
sha256	c6b49c985328b06ae7af5289765014082cc897acf38a7b2f6be92883386deed9
sha512	de9df01cdfba477b9cb812c65780848b4b201b2fddc74d1a14b497a4fcdde4d2dd02bcf48895c9ec8b3a17fbc5763e63d20ce4caf9a721f57f36585d2182c0bc
ripemd-160	f0228f4a8ef008baa233bcf818a4fe1c0661b73f

81444621 as geometric shapes

Circle

Radius = n

Diameter	162889242
Circumference	511731646.01601
Area	2.083889498174E+16

Sphere

Radius = n

Volume	2.2629545384622E+24
Surface area	8.335557992696E+16
Circumference	511731646.01601

Square

Length = n

Perimeter	325778484
Area	6633226289833641
Diagonal	115180087.60054

Cube

Length = n

Surface area	39799357739001846
Volume	5.4024060118274E+23
Space diagonal	141066221.57519

Equilateral Triangle

Length = n

Perimeter	244333863
Area	2.8722712380234E+15
Altitude	70533110.787596

Triangular Pyramid

Length = n

Surface area	2.8722712380234E+15
Volume	6.3667965428102E+22
Height	38393362.533512