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

81121013 (number)

81121013 is an odd 8-digits composite number following 81121012 and preceding 81121014. In scientific notation, it is written as 8.1121013 × 10^7. The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors. There are 75215520 positive integers (up to 81121013) that are relatively prime to 81121013.

Interesting facts

81121013 has 8 divisors, whose sum is 87208320
The reverse of 81121013 is 31012118
Previous prime number is 19

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8

Name

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

Notation

Scientific notation	8.1121013 × 10^7
Engineering notation	8.1121013 × 10^6

Prime Factorization of 81121013

Prime Factorization 47 × 19 × 90841

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81121013	Product of the distinct prime numbers

The prime factorization of 81121013 is 47 × 19 × 90841. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 67, 44, 603, 356, 8352, 6903, 43607, 9576, 764802, 635283, 2853886, 4142219, 76335687, 99675169, 569706016, 408237933, 5898979999, 6180968032

Basic calculations (n = 81121013)

Multiplication

n×y

n×2	162242026
n×3	243363039
n×4	324484052
n×5	405605065

Division

n÷y

n÷2	40560506.5
n÷3	27040337.666667
n÷3	20280253.25
n÷5	16224202.6

Exponentiation

n^y

n²	6580618750146169
n³	5.3382645917865E+23
n⁴	4.3304543134775E+31
n⁵	3.5129084065952E+39

Nth Root

^y√n

²√n	9006.7204353194
³√n	432.89023418312
⁴√n	94.903742999522
⁵√n	38.179186728187

Divisors of 81121013

1, 19, 47, 893, 90841, 1725979, 4269527, 81121013

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	-81121012	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 81121013 can be divided by 8 positive divisors. The sum of these divisors (counting 81121013) is 1, the average is 0.125.

Base conversion 81121013

Base	System	Value
2	Binary	100110101011100111011110101
3	Ternary	12122122101002222
4	Quaternary	10311130323311
5	Quinary	131231333023
6	Senary	12014412125
8	Octal	465347365
10	Decimal	81121013
12	Duodecimal	23201045
16	Hexadecimal	4d5cef5
20	Vigesimal	15702ad
36	Base36	1capdh

Cryptographic Hash Functions

md5	11fdcba7227e72d0f726e23381a9ee0e
sha1	3fa47f04f95af8bb1e6f0965afe528c25f29319d
sha256	055f36ca101887013fa62c8f62f0274649979c9acd7409b08de0ecf401d62338
sha512	eea9c79a238ed3f0f40663ff00e10b3642e66cdefa55ca20cff8a18858902c1a628cdd47ec6573aa287a869dc14f57fc575b4274c1eb5e8e09ce8a04034956bb
ripemd-160	01b58643521191d9e4a04233b9fd71d90bada210

81121013 as geometric shapes

Circle

Radius = n

Diameter	162242026
Circumference	509698356.98512
Area	2.0673623521534E+16

Sphere

Radius = n

Volume	2.2360870432633E+24
Surface area	8.2694494086138E+16
Circumference	509698356.98512

Square

Length = n

Perimeter	324484052
Area	6580618750146169
Diagonal	114722436.77804

Cube

Length = n

Surface area	39483712500877014
Volume	5.3382645917865E+23
Space diagonal	140505716.07746

Equilateral Triangle

Length = n

Perimeter	243363039
Area	2.8494915051234E+15
Altitude	70252858.038728

Triangular Pyramid

Length = n

Surface area	2.8494915051234E+15
Volume	6.2912051543671E+22
Height	38240812.259348