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

81122021 (number)

81122021 is an odd 8-digits prime number following 81122020 and preceding 81122022. In scientific notation, it is written as 8.1122021 × 10^7. The sum of its digits is 17. It has a total of 1 prime factors and 2 positive divisors. There are 81122020 positive integers (up to 81122021) that are relatively prime to 81122021.

Interesting facts

81122021 has 2 divisors, whose sum is 81122022
The reverse of 81122021 is 12022118
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8

Name

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

Notation

Scientific notation	8.1122021 × 10^7
Engineering notation	8.1122021 × 10^6

Prime Factorization of 81122021

Prime Factorization 81122021

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81122021	Product of the distinct prime numbers

The prime factorization of 81122021 is 81122021. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 10, 69, 31, 558, 866, 4476, 913, 38706, 76357, 227446, 589320, 6257812, 3877998, 13903254, 65230874, 612609531, 711299645, 8615073755, 4598304774

Basic calculations (n = 81122021)

Multiplication

n×y

n×2	162244042
n×3	243366063
n×4	324488084
n×5	405610105

Division

n÷y

n÷2	40561010.5
n÷3	27040673.666667
n÷3	20280505.25
n÷5	16224404.2

Exponentiation

n^y

n²	6580782291124441
n³	5.3384635921703E+23
n⁴	4.3306695563177E+31
n⁵	3.5131266669167E+39

Nth Root

^y√n

²√n	9006.7763933607
³√n	432.89202718977
⁴√n	94.904037813787
⁵√n	38.179281609717

Divisors of 81122021

1, 81122021

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81122022	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40561011	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9006.7764488745	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999753458	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81122021 can be divided by 2 positive divisors. The sum of these divisors (counting 81122021) is 81122022, the average is 40561011.

Base conversion 81122021

Base	System	Value
2	Binary	100110101011101001011100101
3	Ternary	12122122102111022
4	Quaternary	10311131023211
5	Quinary	131231401041
6	Senary	12014420525
8	Octal	465351345
10	Decimal	81122021
12	Duodecimal	23201745
16	Hexadecimal	4d5d2e5
20	Vigesimal	1570511
36	Base36	1caq5h

Cryptographic Hash Functions

md5	c923c5e57676ce59651623647ba67b61
sha1	29b7544274f99481a409dcf7d90959957deb496f
sha256	a36ec950ca2eff8ab4d4f418768bfc155ddf75822bb26425c62cb739bc6fab67
sha512	b66a938a0cb6617483fca224683fd309426df1cc39760ab5d4fcf626053af73fd51facbb451b440515e9fe410d7a79a01a17586a6f17b923844da011bf579e43
ripemd-160	5282726561513e424b30c7e113857ae7bd559626

81122021 as geometric shapes

Circle

Radius = n

Diameter	162244042
Circumference	509704690.43591
Area	2.067413730067E+16

Sphere

Radius = n

Volume	2.2361704003492E+24
Surface area	8.2696549202681E+16
Circumference	509704690.43591

Square

Length = n

Perimeter	324488084
Area	6580782291124441
Diagonal	114723862.30532

Cube

Length = n

Surface area	39484693746746646
Volume	5.3384635921703E+23
Space diagonal	140507461.98467

Equilateral Triangle

Length = n

Perimeter	243366063
Area	2.8495623204443E+15
Altitude	70253730.992335

Triangular Pyramid

Length = n

Surface area	2.8495623204443E+15
Volume	6.2914396785685E+22
Height	38241287.435105