81363906 (number)

81363906 is an even 8-digits composite number following 81363905 and preceding 81363907. In scientific notation, it is written as 8.1363906 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 25034832 positive integers (up to 81363906) that are relatively prime to 81363906.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred sixty-three thousand nine hundred six

Notation

Scientific notation 8.1363906 × 10^7
Engineering notation 8.1363906 × 10^6

Prime Factorization of 81363906

Prime Factorization 2 × 9 × 39 × 115903

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81363906
Product of the distinct prime numbers

The prime factorization of 81363906 is 2 × 9 × 39 × 115903. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 38, 52, 361, 629, 7459, 7757, 79390, 89602, 543258, 44642, 2059951, 9853261, 43194894, 75399409, 821878449, 718432354, 1385527258, 6685124821

Basic calculations (n = 81363906)

Multiplication

n×y
n×2 162727812
n×3 244091718
n×4 325455624
n×5 406819530

Division

n÷y
n÷2 40681953
n÷3 27121302
n÷3 20340976.5
n÷5 16272781.2

Exponentiation

ny
n2 6620085199576836
n3 5.3863598989036E+23
n4 4.3825528049656E+31
n5 3.5658161446326E+39

Nth Root

y√n
2√n 9020.1943438044
3√n 433.32185781577
4√n 94.974703704746
5√n 38.202022662098

Divisors of 81363906

1, 2, 9, 18, 39, 78, 351, 702, 115903, 231806, 1043127, 2086254, 4520217, 9040434, 40681953, 81363906

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81363905
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81363906 can be divided by 16 positive divisors. The sum of these divisors (counting 81363906) is 1, the average is 0.0625.

Base conversion 81363906

Base System Value
2 Binary 100110110011000001111000010
3 Ternary 12200002201022000
4 Quaternary 10312120033002
5 Quinary 131312121111
6 Senary 12023524430
8 Octal 466301702
10 Decimal 81363906
12 Duodecimal 232b9716
16 Hexadecimal 4d983c2
20 Vigesimal 158a9f6
36 Base36 1cfwsi

Cryptographic Hash Functions

md5 c5d24fa93f39906716dc53db8c87a943
sha1 0d5eaa8eb004fefe7ba063c9225aeb06215e4936
sha256 2ea6169f83fc2e4a883428eafd493e9a2b159c371abe1ad40e871075f22e9d24
sha512 46b7f6a9e2a91748efbfabab27d890b22b0454d390333256f4ebaaa771d803a7a63253a2a5886cc4f36db2ba07da492c3be8df07e65a4554da097f56b124c873
ripemd-160 f7de50b08e3b3178b1743426f28b930a9ab2c2cf

81363906 as geometric shapes

Circle

Radius = n
Diameter 162727812
Circumference 511224498.71394
Area 2.0797611029129E+16

Sphere

Radius = n
Volume 2.2562331583982E+24
Surface area 8.3190444116516E+16
Circumference 511224498.71394

Square

Length = n
Perimeter 325455624
Area 6620085199576836
Diagonal 115065939.35285

Cube

Length = n
Surface area 39720511197461016
Volume 5.3863598989036E+23
Space diagonal 140926419.09426

Equilateral Triangle

Length = n
Perimeter 244091718
Area 2.8665809790255E+15
Altitude 70463209.547129

Triangular Pyramid

Length = n
Surface area 2.8665809790255E+15
Volume 6.3478860173767E+22
Height 38355313.117617