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

81121556 (number)

81121556 is an even 8-digits composite number following 81121555 and preceding 81121557. In scientific notation, it is written as 8.1121556 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 6 positive divisors. There are 40560776 positive integers (up to 81121556) that are relatively prime to 81121556.

Interesting facts

81121556 has 6 divisors, whose sum is 141962730
The reverse of 81121556 is 65512118
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	eighty-one million one hundred twenty-one thousand five hundred fifty-six

Notation

Scientific notation	8.1121556 × 10^7
Engineering notation	8.1121556 × 10^6

Prime Factorization of 81121556

Prime Factorization 2 × 2 × 20280389

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	40560778	Product of the distinct prime numbers

The prime factorization of 81121556 is 2 × 2 × 20280389. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 7, 67, 68, 431, 107, 5634, 4727, 78731, 17479, 752437, 278116, 1695621, 7662388, 39110013, 77481699, 750890731, 988969018, 7375987514, 9557130281

Basic calculations (n = 81121556)

Multiplication

n×y

n×2	162243112
n×3	243364668
n×4	324486224
n×5	405607780

Division

n÷y

n÷2	40560778
n÷3	27040518.666667
n÷3	20280389
n÷5	16224311.2

Exponentiation

n^y

n²	6580706847861136
n³	5.3383717907835E+23
n⁴	4.3305702617486E+31
n⁵	3.5130259800038E+39

Nth Root

^y√n

²√n	9006.7505794265
³√n	432.89120006057
⁴√n	94.9039018135
⁵√n	38.179237840081

Divisors of 81121556

1, 2, 4, 20280389, 40560778, 81121556

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81121555	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81121556 can be divided by 6 positive divisors. The sum of these divisors (counting 81121556) is 1, the average is 0.16666666666667.

Base conversion 81121556

Base	System	Value
2	Binary	100110101011101000100010100
3	Ternary	12122122101212002
4	Quaternary	10311131010110
5	Quinary	131231342211
6	Senary	12014414432
8	Octal	465350424
10	Decimal	81121556
12	Duodecimal	23201418
16	Hexadecimal	4d5d114
20	Vigesimal	15703hg
36	Base36	1capsk

Cryptographic Hash Functions

md5	ac09736ecb66d3db7c9017eaa2effe0a
sha1	c6728019bad24ebdac19e658c7be1a348ecdbbdc
sha256	fa80f38c758eb43bf91afdf1eba43a995445ad6a3726e129d7d77b740884ad99
sha512	339615526861c2a3bea2e74cbb1e5b205b9b85ae1cd42bdd148c7a68dfc5e895afa96c3cad94838ba34bad5d0a29eee82ebe12fc975cadee2014fecf68f0e98e
ripemd-160	18f44565bfd9f8f91dc1eb52d4b038b953921b42

81121556 as geometric shapes

Circle

Radius = n

Diameter	162243112
Circumference	509701768.75475
Area	2.0673900288669E+16

Sphere

Radius = n

Volume	2.2361319466742E+24
Surface area	8.2695601154674E+16
Circumference	509701768.75475

Square

Length = n

Perimeter	324486224
Area	6580706847861136
Diagonal	114723204.69601

Cube

Length = n

Surface area	39484241087166816
Volume	5.3383717907835E+23
Space diagonal	140506656.58104

Equilateral Triangle

Length = n

Perimeter	243364668
Area	2.849529652553E+15
Altitude	70253328.290522

Triangular Pyramid

Length = n

Surface area	2.849529652553E+15
Volume	6.2913314895967E+22
Height	38241068.232003