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

81401265 (number)

81401265 is an odd 8-digits composite number following 81401264 and preceding 81401266. In scientific notation, it is written as 8.1401265 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 39467040 positive integers (up to 81401265) that are relatively prime to 81401265.

Interesting facts

81401265 has 4 divisors, whose sum is 81566208
The reverse of 81401265 is 56210418
Previous prime number is 495

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	8.1401265 × 10^7
Engineering notation	8.1401265 × 10^6

Prime Factorization of 81401265

Prime Factorization 495 × 164447

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81401265	Product of the distinct prime numbers

The prime factorization of 81401265 is 495 × 164447. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 71, 79, 530, 14, 3119, 6312, 48560, 73113, 371758, 856422, 5680695, 9866394, 58960872, 76318586, 494591249, 828491160, 4261285402, 1568082449

Basic calculations (n = 81401265)

Multiplication

n×y

n×2	162802530
n×3	244203795
n×4	325605060
n×5	407006325

Division

n÷y

n÷2	40700632.5
n÷3	27133755
n÷3	20350316.25
n÷5	16280253

Exponentiation

n^y

n²	6626165943600225
n³	5.3937828990898E+23
n⁴	4.3906075112127E+31
n⁵	3.5740100553122E+39

Nth Root

^y√n

²√n	9022.2649595321
³√n	433.38816893175
⁴√n	94.9856039594
⁵√n	38.205530181302

Divisors of 81401265

1, 495, 164447, 81401265

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	-81401264	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 81401265 can be divided by 4 positive divisors. The sum of these divisors (counting 81401265) is 1, the average is 0.25.

Base conversion 81401265

Base	System	Value
2	Binary	100110110100001010110110001
3	Ternary	12200011121112200
4	Quaternary	10312201112301
5	Quinary	131314320030
6	Senary	12024413413
8	Octal	466412661
10	Decimal	81401265
12	Duodecimal	23317269
16	Hexadecimal	4da15b1
20	Vigesimal	158f335
36	Base36	1cgpm9

Cryptographic Hash Functions

md5	3df16d1da806dc1ff4508c9589bebe98
sha1	8b478fcfab68b1758acb3a35ce1d8f402a991894
sha256	3dbe96a87ef8488b45718529c39e0a4d59d8c1f68e1f2a00e03d41778fe24925
sha512	48f17dc4e77b0566abcca2c9aacc620dc1754d1b22abb8ba4db25c706f5d8397489bb014422083b292a4c334f3e4aad67b0e88c10bfd2e4fc9f81fcaf961ef06
ripemd-160	64126363543319500cb6a49bfaf06f4214d5a76b

81401265 as geometric shapes

Circle

Radius = n

Diameter	162802530
Circumference	511459232.23383
Area	2.0816714249881E+16

Sphere

Radius = n

Volume	2.2593424974452E+24
Surface area	8.3266856999525E+16
Circumference	511459232.23383

Square

Length = n

Perimeter	325605060
Area	6626165943600225
Diagonal	115118772.95733

Cube

Length = n

Surface area	39756995661601350
Volume	5.3937828990898E+23
Space diagonal	140991126.78038

Equilateral Triangle

Length = n

Perimeter	244203795
Area	2.8692140184245E+15
Altitude	70495563.390189

Triangular Pyramid

Length = n

Surface area	2.8692140184245E+15
Volume	6.3566341069907E+22
Height	38372924.319109