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

81013906 (number)

81013906 is an even 8-digits composite number following 81013905 and preceding 81013907. In scientific notation, it is written as 8.1013906 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 40506952 positive integers (up to 81013906) that are relatively prime to 81013906.

Interesting facts

81013906 has 4 divisors, whose sum is 121520862
The reverse of 81013906 is 60931018
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	eighty-one million thirteen thousand nine hundred six

Notation

Scientific notation	8.1013906 × 10^7
Engineering notation	8.1013906 × 10^6

Prime Factorization of 81013906

Prime Factorization 2 × 40506953

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81013906	Product of the distinct prime numbers

The prime factorization of 81013906 is 2 × 40506953. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 2, 51, 11, 663, 200, 5442, 4499, 40712, 92232, 667645, 515119, 8554891, 7996930, 28314133, 63915926, 36399447, 861836319, 2025141324, 8020476110

Basic calculations (n = 81013906)

Multiplication

n×y

n×2	162027812
n×3	243041718
n×4	324055624
n×5	405069530

Division

n÷y

n÷2	40506953
n÷3	27004635.333333
n÷3	20253476.5
n÷5	16202781.2

Exponentiation

n^y

n²	6563252965376836
n³	5.3171475879126E+23
n⁴	4.3076289487528E+31
n⁵	3.4897784673714E+39

Nth Root

^y√n

²√n	9000.7725224005
³√n	432.69963007359
⁴√n	94.872401268232
⁵√n	38.169099527863

Divisors of 81013906

1, 2, 40506953, 81013906

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	-81013905	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 81013906 can be divided by 4 positive divisors. The sum of these divisors (counting 81013906) is 1, the average is 0.25.

Base conversion 81013906

Base	System	Value
2	Binary	100110101000010110010010010
3	Ternary	12122102221012001
4	Quaternary	10311002302102
5	Quinary	131214421111
6	Senary	12012224214
8	Octal	465026222
10	Decimal	81013906
12	Duodecimal	2316b06a
16	Hexadecimal	4d42c92
20	Vigesimal	1566ef6
36	Base36	1c8eqa

Cryptographic Hash Functions

md5	f9e3abf97df626ad1ac4ea1ec90a4def
sha1	7b334f4481d52bcaa5c21845890ad5446300d40d
sha256	80a88f12f63e1cf3886fd8997a77265f2cb75ac4d85b2cad7aec4ac5a995af67
sha512	64d534dcf8b38a3847488846835ad054ca411d281590df34403827b0f95f75fb6b3aa6c48352cec73a5c8944e0005a4985cacdddb072d49342b2b23cdb229fac
ripemd-160	c86d922ec34eec59a62c901ff1fee781e03cddff

81013906 as geometric shapes

Circle

Radius = n

Diameter	162027812
Circumference	509025383.85643
Area	2.0619067299679E+16

Sphere

Radius = n

Volume	2.2272415733652E+24
Surface area	8.2476269198717E+16
Circumference	509025383.85643

Square

Length = n

Perimeter	324055624
Area	6563252965376836
Diagonal	114570964.60602

Cube

Length = n

Surface area	39379517792261016
Volume	5.3171475879126E+23
Space diagonal	140320201.31161

Equilateral Triangle

Length = n

Perimeter	243041718
Area	2.8419718997399E+15
Altitude	70160100.655805

Triangular Pyramid

Length = n

Surface area	2.8419718997399E+15
Volume	6.2663185266378E+22
Height	38190321.53534