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

81121118 (number)

81121118 is an even 8-digits composite number following 81121117 and preceding 81121119. In scientific notation, it is written as 8.1121118 × 10^7. The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors. There are 37107840 positive integers (up to 81121118) that are relatively prime to 81121118.

Interesting facts

81121118 has 16 divisors, whose sum is 132206256
The reverse of 81121118 is 81112118
Previous prime number is 113

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	eighty-one million one hundred twenty-one thousand one hundred eighteen

Notation

Scientific notation	8.1121118 × 10^7
Engineering notation	8.1121118 × 10^6

Prime Factorization of 81121118

Prime Factorization 2 × 13 × 113 × 27611

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	81121118	Product of the distinct prime numbers

The prime factorization of 81121118 is 2 × 13 × 113 × 27611. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 36, 92, 951, 287, 3954, 8816, 51585, 82745, 957583, 118153, 4826490, 2249284, 41034372, 63259943, 902922316, 717731670, 6728152760, 8991356233

Basic calculations (n = 81121118)

Multiplication

n×y

n×2	162242236
n×3	243363354
n×4	324484472
n×5	405605590

Division

n÷y

n÷2	40560559
n÷3	27040372.666667
n÷3	20280279.5
n÷5	16224223.6

Exponentiation

n^y

n²	6580635785569924
n³	5.3382853207624E+23
n⁴	4.3304767342323E+31
n⁵	3.5129311415392E+39

Nth Root

^y√n

²√n	9006.7262642983
³√n	432.89042095534
⁴√n	94.90377370947
⁵√n	38.179196611724

Divisors of 81121118

1, 2, 13, 26, 113, 226, 1469, 2938, 27611, 55222, 358943, 717886, 3120043, 6240086, 40560559, 81121118

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81121117	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81121118 can be divided by 16 positive divisors. The sum of these divisors (counting 81121118) is 1, the average is 0.0625.

Base conversion 81121118

Base	System	Value
2	Binary	100110101011100111101011110
3	Ternary	12122122101020212
4	Quaternary	10311130331132
5	Quinary	131231333433
6	Senary	12014412422
8	Octal	465347536
10	Decimal	81121118
12	Duodecimal	23201112
16	Hexadecimal	4d5cf5e
20	Vigesimal	15702fi
36	Base36	1capge

Cryptographic Hash Functions

md5	ab5c9b3ae8d14e21a8ef1fd7b7aa0397
sha1	6d859566af368c15b9cf4257ca4cc63ffb9f8dfa
sha256	4e8c4cc85c8f80065b4c880ff88059bbff56fcc13af09e9db5e7a400fe2bed58
sha512	78dd0a75194fe72e015a7efd09244c268cddbf41e52e11dfb8b7136d5f804a9793e235045449a19935af426749559ad6855191784c1373a050f7df439310fd2f
ripemd-160	f3d5900112389762a2120d5ceff0c93f7b904c90

81121118 as geometric shapes

Circle

Radius = n

Diameter	162242236
Circumference	509699016.71958
Area	2.0673677039897E+16

Sphere

Radius = n

Volume	2.2360957261965E+24
Surface area	8.2694708159586E+16
Circumference	509699016.71958

Square

Length = n

Perimeter	324484472
Area	6580635785569924
Diagonal	114722585.27047

Cube

Length = n

Surface area	39483814713419544
Volume	5.3382853207624E+23
Space diagonal	140505897.94279

Equilateral Triangle

Length = n

Perimeter	243363354
Area	2.8494988816783E+15
Altitude	70252948.971395

Triangular Pyramid

Length = n

Surface area	2.8494988816783E+15
Volume	6.2912295836995E+22
Height	38240861.756823