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

81979969 (number)

81979969 is an odd 8-digits composite number following 81979968 and preceding 81979970. In scientific notation, it is written as 8.1979969 × 10^7. The sum of its digits is 58. It has a total of 2 prime factors and 4 positive divisors. There are 80590420 positive integers (up to 81979969) that are relatively prime to 81979969.

Interesting facts

81979969 has 4 divisors, whose sum is 83369520
The reverse of 81979969 is 96997918
Previous prime number is 59

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 58
Digital Root 4

Name

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

Notation

Scientific notation	8.1979969 × 10^7
Engineering notation	8.1979969 × 10^6

Prime Factorization of 81979969

Prime Factorization 59 × 1389491

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81979969	Product of the distinct prime numbers

The prime factorization of 81979969 is 59 × 1389491. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 5, 93, 92, 788, 55, 9822, 8900, 74226, 5210, 434895, 987645, 7538897, 2338523, 73203434, 49079641, 498683953, 12786513, 6883373641, 505018604

Basic calculations (n = 81979969)

Multiplication

n×y

n×2	163959938
n×3	245939907
n×4	327919876
n×5	409899845

Division

n÷y

n÷2	40989984.5
n÷3	27326656.333333
n÷3	20494992.25
n÷5	16395993.8

Exponentiation

n^y

n²	6720715317240961
n³	5.5096403336524E+23
n⁴	4.5168014375397E+31
n⁵	3.7028724182866E+39

Nth Root

^y√n

²√n	9054.2790436346
³√n	434.41276996072
⁴√n	95.153975448399
⁵√n	38.25969908505

Divisors of 81979969

1, 59, 1389491, 81979969

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	-81979968	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 81979969 can be divided by 4 positive divisors. The sum of these divisors (counting 81979969) is 1, the average is 0.25.

Base conversion 81979969

Base	System	Value
2	Binary	100111000101110101001000001
3	Ternary	12201021000101011
4	Quaternary	10320232221001
5	Quinary	131441324334
6	Senary	12045040521
8	Octal	470565101
10	Decimal	81979969
12	Duodecimal	23556141
16	Hexadecimal	4e2ea41
20	Vigesimal	15c79i9
36	Base36	1ct45d

Cryptographic Hash Functions

md5	9f14d8be92e6a491707e9c9cddc01418
sha1	d08a1fe9a89570372819d74fa5184bdc06e35659
sha256	1248dadf32a16a6c8c3c7f7eb191d8a4c5fa2b7af74af32c535d38ab26cd0004
sha512	e193d81c9ab545108e264f988fd3b127403809271640070e24cce7fd7e5205d722985e547707d243b77f5c9925ef8e5dac3fdfc78277ae351463afeafab3c66c
ripemd-160	264279f537bc630568acf3e76b43052f0378fbf3

81979969 as geometric shapes

Circle

Radius = n

Diameter	163959938
Circumference	515095336.70384
Area	2.1113749867513E+16

Sphere

Radius = n

Volume	2.3078727461499E+24
Surface area	8.445499947005E+16
Circumference	515095336.70384

Square

Length = n

Perimeter	327919876
Area	6720715317240961
Diagonal	115937184.00273

Cube

Length = n

Surface area	40324291903445766
Volume	5.5096403336524E+23
Space diagonal	141993471.51092

Equilateral Triangle

Length = n

Perimeter	245939907
Area	2.9101550981669E+15
Altitude	70996735.755461

Triangular Pyramid

Length = n

Surface area	2.9101550981669E+15
Volume	6.4931734030409E+22
Height	38645728.000909