81363908 (number)

81363908 is an even 8-digits composite number following 81363907 and preceding 81363909. In scientific notation, it is written as 8.1363908 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 39279072 positive integers (up to 81363908) that are relatively prime to 81363908.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1363908 × 10^7
Engineering notation 8.1363908 × 10^6

Prime Factorization of 81363908

Prime Factorization 2 × 2 × 29 × 701413

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40681954
Product of the distinct prime numbers

The prime factorization of 81363908 is 2 × 2 × 29 × 701413. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 68, 83, 325, 838, 7151, 281, 8222, 15214, 318825, 173907, 3942143, 5351243, 73181836, 4256348, 629667764, 58604943, 5932367263, 8955734153

Basic calculations (n = 81363908)

Multiplication

n×y
n×2 162727816
n×3 244091724
n×4 325455632
n×5 406819540

Division

n÷y
n÷2 40681954
n÷3 27121302.666667
n÷3 20340977
n÷5 16272781.6

Exponentiation

ny
n2 6620085525032464
n3 5.3863602961087E+23
n4 4.3825532358744E+31
n5 3.5658165828879E+39

Nth Root

y√n
2√n 9020.1944546667
3√n 433.32186136625
4√n 94.974704288388
5√n 38.202022849906

Divisors of 81363908

1, 2, 4, 29, 58, 116, 701413, 1402826, 2805652, 20340977, 40681954, 81363908

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81363907
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81363908 can be divided by 12 positive divisors. The sum of these divisors (counting 81363908) is 1, the average is 0.083333333333333.

Base conversion 81363908

Base System Value
2 Binary 100110110011000001111000100
3 Ternary 12200002201022002
4 Quaternary 10312120033010
5 Quinary 131312121113
6 Senary 12023524432
8 Octal 466301704
10 Decimal 81363908
12 Duodecimal 232b9718
16 Hexadecimal 4d983c4
20 Vigesimal 158a9f8
36 Base36 1cfwsk

Cryptographic Hash Functions

md5 ae8996c4fd18db04252979dca6b49326
sha1 3878516d21f08a5e9dcc5d8f7fa57f1b53052c17
sha256 10671cd5f3854bb9bdc2bed7be71ce790bbea8412662ec45336498de6791790f
sha512 7427a806d435686d2393ea1be0dcce289c1b1e10fc4627404bb6edcae577c7f3b6e2a8448d897245eb3db2934442f1e09f64d34ae1725562c5332c5e701a0718
ripemd-160 6d19dcad3a05bbce1db818f6ade3a46b0df1a4db

81363908 as geometric shapes

Circle

Radius = n
Diameter 162727816
Circumference 511224511.28031
Area 2.0797612051578E+16

Sphere

Radius = n
Volume 2.2562333247791E+24
Surface area 8.3190448206312E+16
Circumference 511224511.28031

Square

Length = n
Perimeter 325455632
Area 6620085525032464
Diagonal 115065942.18128

Cube

Length = n
Surface area 39720513150194784
Volume 5.3863602961087E+23
Space diagonal 140926422.55836

Equilateral Triangle

Length = n
Perimeter 244091724
Area 2.8665811199519E+15
Altitude 70463211.27918

Triangular Pyramid

Length = n
Surface area 2.8665811199519E+15
Volume 6.3478864854874E+22
Height 38355314.060426