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

81438265 (number)

81438265 is an odd 8-digits composite number following 81438264 and preceding 81438266. In scientific notation, it is written as 8.1438265 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 65150608 positive integers (up to 81438265) that are relatively prime to 81438265.

Interesting facts

81438265 has 4 divisors, whose sum is 97725924
The reverse of 81438265 is 56283418
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	eighty-one million four hundred thirty-eight thousand two hundred sixty-five

Notation

Scientific notation	8.1438265 × 10^7
Engineering notation	8.1438265 × 10^6

Prime Factorization of 81438265

Prime Factorization 5 × 16287653

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81438265	Product of the distinct prime numbers

The prime factorization of 81438265 is 5 × 16287653. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 3, 92, 86, 112, 978, 6739, 4279, 74250, 22558, 653028, 983847, 1704208, 5030607, 91385872, 36163944, 112732580, 382945410, 439026493, 1041199601

Basic calculations (n = 81438265)

Multiplication

n×y

n×2	162876530
n×3	244314795
n×4	325753060
n×5	407191325

Division

n÷y

n÷2	40719132.5
n÷3	27146088.333333
n÷3	20359566.25
n÷5	16287653

Exponentiation

n^y

n²	6632191006210225
n³	5.4011412869436E+23
n⁴	4.3985957542856E+31
n⁵	3.5821400666538E+39

Nth Root

^y√n

²√n	9024.3152094771
³√n	433.45382283897
⁴√n	94.996395770982
⁵√n	38.209002726039

Divisors of 81438265

1, 5, 16287653, 81438265

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	-81438264	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 81438265 can be divided by 4 positive divisors. The sum of these divisors (counting 81438265) is 1, the average is 0.25.

Base conversion 81438265

Base	System	Value
2	Binary	100110110101010011000111001
3	Ternary	12200020111022001
4	Quaternary	10312222120321
5	Quinary	131322011030
6	Senary	12025301001
8	Octal	466523071
10	Decimal	81438265
12	Duodecimal	23334761
16	Hexadecimal	4daa639
20	Vigesimal	158jfd5
36	Base36	1chi61

Cryptographic Hash Functions

md5	498fa2aede2a1e08ca8e4facbeefdad6
sha1	1f46627ec8a12bd26548503bd9dbb2efa827a985
sha256	96ea27ef9ba97d2afd40a6d11170851852ff8e21f431c2740374093a2e20ca77
sha512	be90324c95060b7ccb6c34e152f6b471b2420703882c5ee63272a32d3377496a23cccfc48c1eb1d17c52f315a86d6757810bf4ca9b6d3828cc01461ad6259043
ripemd-160	48a6d3f349ec3f0385ab19da480ad2a9a91178c7

81438265 as geometric shapes

Circle

Radius = n

Diameter	162876530
Circumference	511691710.0902
Area	2.0835642542314E+16

Sphere

Radius = n

Volume	2.2624247717417E+24
Surface area	8.3342570169257E+16
Circumference	511691710.0902

Square

Length = n

Perimeter	325753060
Area	6632191006210225
Diagonal	115171098.85913

Cube

Length = n

Surface area	39793146037261350
Volume	5.4011412869436E+23
Space diagonal	141055212.66026

Equilateral Triangle

Length = n

Perimeter	244314795
Area	2.8718229470644E+15
Altitude	70527606.330129

Triangular Pyramid

Length = n

Surface area	2.8718229470644E+15
Volume	6.3653060502408E+22
Height	38390366.286378