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

81489427 (number)

81489427 is an odd 8-digits composite number following 81489426 and preceding 81489428. In scientific notation, it is written as 8.1489427 × 10^7. The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors. There are 79501840 positive integers (up to 81489427) that are relatively prime to 81489427.

Interesting facts

81489427 has 4 divisors, whose sum is 83477016
The reverse of 81489427 is 72498418
Previous prime number is 41

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7

Name

Name	eighty-one million four hundred eighty-nine thousand four hundred twenty-seven

Notation

Scientific notation	8.1489427 × 10^7
Engineering notation	8.1489427 × 10^6

Prime Factorization of 81489427

Prime Factorization 41 × 1987547

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81489427	Product of the distinct prime numbers

The prime factorization of 81489427 is 41 × 1987547. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 10, 48, 41, 629, 211, 1019, 6221, 18807, 39288, 486232, 481940, 8513046, 4734559, 14940008, 93879104, 584685946, 16659575, 3427105985, 9668818172

Basic calculations (n = 81489427)

Multiplication

n×y

n×2	162978854
n×3	244468281
n×4	325957708
n×5	407447135

Division

n÷y

n÷2	40744713.5
n÷3	27163142.333333
n÷3	20372356.75
n÷5	16297885.4

Exponentiation

n^y

n²	6640526712788329
n³	5.4113271680331E+23
n⁴	4.4096595023255E+31
n⁵	3.5934062610961E+39

Nth Root

^y√n

²√n	9027.1494393302
³√n	433.54457347136
⁴√n	95.01131216508
⁵√n	38.213802332082

Divisors of 81489427

1, 41, 1987547, 81489427

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	-81489426	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 81489427 can be divided by 4 positive divisors. The sum of these divisors (counting 81489427) is 1, the average is 0.25.

Base conversion 81489427

Base	System	Value
2	Binary	100110110110110111000010011
3	Ternary	12200100002110221
4	Quaternary	10312312320103
5	Quinary	131330130202
6	Senary	12030333511
8	Octal	466667023
10	Decimal	81489427
12	Duodecimal	2335a297
16	Hexadecimal	4db6e13
20	Vigesimal	15963b7
36	Base36	1ciln7

Cryptographic Hash Functions

md5	847c11c7e72fceac3c3dec49a9567d5c
sha1	fac697bf45fc9c1bc06688d2cb9c90a5da6732fb
sha256	a3e3f6958d86225dc692f7c052467489e0aab54545e5d555e77a81a114f2cec5
sha512	5e6862b8543341533d0d70023890602ee72e75bc4b805ee385f8acd242d2a69b1bf7573e7dd09da07a9e1bdb72438ec6a98999c703cbc62d287b924a691f953f
ripemd-160	978378acb995c6423f4da9f0b941c49d05eb9cde

81489427 as geometric shapes

Circle

Radius = n

Diameter	162978854
Circumference	512013170.41688
Area	2.0861829936863E+16

Sphere

Radius = n

Volume	2.2666914236352E+24
Surface area	8.344731974745E+16
Circumference	512013170.41688

Square

Length = n

Perimeter	325957708
Area	6640526712788329
Diagonal	115243452.85341

Cube

Length = n

Surface area	39843160276729974
Volume	5.4113271680331E+23
Space diagonal	141143827.84368

Equilateral Triangle

Length = n

Perimeter	244468281
Area	2.8754324138919E+15
Altitude	70571913.921838

Triangular Pyramid

Length = n

Surface area	2.8754324138919E+15
Volume	6.3773102262254E+22
Height	38414484.284471