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

81125816 (number)

81125816 is an even 8-digits composite number following 81125815 and preceding 81125817. In scientific notation, it is written as 8.1125816 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 8 positive divisors. There are 40562904 positive integers (up to 81125816) that are relatively prime to 81125816.

Interesting facts

81125816 has 8 divisors, whose sum is 152110920
The reverse of 81125816 is 61852118
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	eighty-one million one hundred twenty-five thousand eight hundred sixteen

Notation

Scientific notation	8.1125816 × 10^7
Engineering notation	8.1125816 × 10^6

Prime Factorization of 81125816

Prime Factorization 2 × 2 × 2 × 10140727

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	20281454	Product of the distinct prime numbers

The prime factorization of 81125816 is 2 × 2 × 2 × 10140727. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 5, 42, 10, 158, 199, 1816, 541, 70291, 75508, 471602, 208906, 4494747, 8395297, 17717928, 31453513, 52570327, 753072830, 4583423456, 846244841

Basic calculations (n = 81125816)

Multiplication

n×y

n×2	162251632
n×3	243377448
n×4	324503264
n×5	405629080

Division

n÷y

n÷2	40562908
n÷3	27041938.666667
n÷3	20281454
n÷5	16225163.2

Exponentiation

n^y

n²	6581398021665856
n³	5.3392128492843E+23
n⁴	4.3314799919587E+31
n⁵	3.5139484883533E+39

Nth Root

^y√n

²√n	9006.9870656063
³√n	432.89877751316
⁴√n	94.905147729754
⁵√n	38.17963881892

Divisors of 81125816

1, 2, 4, 8, 10140727, 20281454, 40562908, 81125816

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	-81125815	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 81125816 can be divided by 8 positive divisors. The sum of these divisors (counting 81125816) is 1, the average is 0.125.

Base conversion 81125816

Base	System	Value
2	Binary	100110101011110000110111000
3	Ternary	12122122121200212
4	Quaternary	10311132012320
5	Quinary	131232011231
6	Senary	12014450252
8	Octal	465360670
10	Decimal	81125816
12	Duodecimal	23203988
16	Hexadecimal	4d5e1b8
20	Vigesimal	1570eag
36	Base36	1cat2w

Cryptographic Hash Functions

md5	e820f8ab9932bb5435a51ae280066bc2
sha1	ae5937ce29dc892aeb82da4047354c2114af6d42
sha256	f36a3f590853bb20ef92bae46934bd058f0a26a15ce95d6b9294ce2c89d1f406
sha512	fc4847c5d6508e218c5ff19db5f00fc1508530bbdc238f8a95e03e61726f8f368cc5b37dd5ffabe881a368e17386cdd81e05159f7839c533ff222b354de50473
ripemd-160	2d8a51b2a51792cdb9eb780211fa5ecde0949cbc

81125816 as geometric shapes

Circle

Radius = n

Diameter	162251632
Circumference	509728535.12415
Area	2.0676071675216E+16

Sphere

Radius = n

Volume	2.2364842484352E+24
Surface area	8.2704286700863E+16
Circumference	509728535.12415

Square

Length = n

Perimeter	324503264
Area	6581398021665856
Diagonal	114729229.24578

Cube

Length = n

Surface area	39488388129995136
Volume	5.3392128492843E+23
Space diagonal	140514035.11748

Equilateral Triangle

Length = n

Perimeter	243377448
Area	2.8498289395896E+15
Altitude	70257017.558742

Triangular Pyramid

Length = n

Surface area	2.8498289395896E+15
Volume	6.2923226865454E+22
Height	38243076.415261