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

81400979 (number)

81400979 is an odd 8-digits composite number following 81400978 and preceding 81400980. In scientific notation, it is written as 8.1400979 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 70783240 positive integers (up to 81400979) that are relatively prime to 81400979.

Interesting facts

81400979 has 8 divisors, whose sum is 92662272
The reverse of 81400979 is 97900418
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million four hundred thousand nine hundred seventy-nine

Notation

Scientific notation	8.1400979 × 10^7
Engineering notation	8.1400979 × 10^6

Prime Factorization of 81400979

Prime Factorization 11 × 23 × 321743

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81400979	Product of the distinct prime numbers

The prime factorization of 81400979 is 11 × 23 × 321743. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 3, 62, 99, 144, 452, 5579, 4808, 95080, 32901, 240993, 585558, 7616169, 6492623, 62232597, 30164671, 703272134, 183375600, 623955815, 7918138111

Basic calculations (n = 81400979)

Multiplication

n×y

n×2	162801958
n×3	244202937
n×4	325603916
n×5	407004895

Division

n÷y

n÷2	40700489.5
n÷3	27133659.666667
n÷3	20350244.75
n÷5	16280195.8

Exponentiation

n^y

n²	6626119382158441
n³	5.3937260467857E+23
n⁴	4.3905458066616E+31
n⁵	3.573947270066E+39

Nth Root

^y√n

²√n	9022.2491098395
³√n	433.38766136731
⁴√n	94.985520527286
⁵√n	38.205503334552

Divisors of 81400979

1, 11, 23, 253, 321743, 3539173, 7400089, 81400979

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	-81400978	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 81400979 can be divided by 8 positive divisors. The sum of these divisors (counting 81400979) is 1, the average is 0.125.

Base conversion 81400979

Base	System	Value
2	Binary	100110110100001010010010011
3	Ternary	12200011121011002
4	Quaternary	10312201102103
5	Quinary	131314312404
6	Senary	12024412215
8	Octal	466412223
10	Decimal	81400979
12	Duodecimal	2331706b
16	Hexadecimal	4da1493
20	Vigesimal	158f28j
36	Base36	1cgpeb

Cryptographic Hash Functions

md5	d298d994c6a17ae971d6489d5ad621ae
sha1	bb67b2b0d4b8d340b9e69e9c40616714d39f731b
sha256	d0896b32c62b5876ee56bd53f5f612d0ddafb77ff85cdea21bc5caf337a28c88
sha512	7fbc834422bb9253023d6c057478a21dd49e41099230e147f34f18b053b8cf6f3542b6f841c7cae367280dc322bb96a20e56f664dc2c2942086925953718cfb8
ripemd-160	80b66702337d885d1828d791caef117bcdfc6751

81400979 as geometric shapes

Circle

Radius = n

Diameter	162801958
Circumference	511457435.24283
Area	2.0816567972798E+16

Sphere

Radius = n

Volume	2.2593186832077E+24
Surface area	8.3266271891192E+16
Circumference	511457435.24283

Square

Length = n

Perimeter	325603916
Area	6626119382158441
Diagonal	115118368.49225

Cube

Length = n

Surface area	39756716292950646
Volume	5.3937260467857E+23
Space diagonal	140990631.41385

Equilateral Triangle

Length = n

Perimeter	244202937
Area	2.8691938567288E+15
Altitude	70495315.706924

Triangular Pyramid

Length = n

Surface area	2.8691938567288E+15
Volume	6.3565671059078E+22
Height	38372789.497416