81794913 (number)

81794913 is an odd 8-digits composite number following 81794912 and preceding 81794914. In scientific notation, it is written as 8.1794913 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 54529940 positive integers (up to 81794913) that are relatively prime to 81794913.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred ninety-four thousand nine hundred thirteen

Notation

Scientific notation 8.1794913 × 10^7
Engineering notation 8.1794913 × 10^6

Prime Factorization of 81794913

Prime Factorization 3 × 27264971

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81794913
Product of the distinct prime numbers

The prime factorization of 81794913 is 3 × 27264971. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81794913)

Multiplication

n×y
n×2 163589826
n×3 245384739
n×4 327179652
n×5 408974565

Division

n÷y
n÷2 40897456.5
n÷3 27264971
n÷3 20448728.25
n÷5 16358982.6

Exponentiation

ny
n2 6690407792677569
n3 5.4724132333658E+23
n4 4.4761556432321E+31
n5 3.6612676141263E+39

Nth Root

y√n
2√n 9044.0540135495
3√n 434.08565243025
4√n 95.100231406393
5√n 38.242410499643

Divisors of 81794913

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 -81794912
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 81794913 can be divided by 4 positive divisors. The sum of these divisors (counting 81794913) is 1, the average is 0.25.

Base conversion 81794913

Base System Value
2 Binary 100111000000001011101100001
3 Ternary 12200220121112020
4 Quaternary 10320001131201
5 Quinary 131414414123
6 Senary 12041052053
8 Octal 470013541
10 Decimal 81794913
12 Duodecimal 23487029
16 Hexadecimal 4e01761
20 Vigesimal 15b475d
36 Base36 1cp5cx

Cryptographic Hash Functions

md5 aff27633cbb1cc5fb94d009a437993ec
sha1 5119b8dc4dac6a2d4ed012eba2416b4da65bc240
sha256 62f72f31e7071eed0f02c8b24f46b6303254b1afb87aef9e9ff0326ab1b80e97
sha512 be9a57705e14be1a80178fb9d8446dc4568b08cdeb7fc2b6e850a1d8cd2a5406c010212b4c5265aed2e4281ed89322ea1f2763db67e322f2685abc81f6a992cb
ripemd-160 c8b48c4449df3edc85ee2ab0f1628fc49fb2ce60

81794913 as geometric shapes

Circle

Radius = n
Diameter 163589826
Circumference 513932595.56363
Area 2.1018535970996E+16

Sphere

Radius = n
Volume 2.2922790948466E+24
Surface area 8.4074143883983E+16
Circumference 513932595.56363

Square

Length = n
Perimeter 327179652
Area 6690407792677569
Diagonal 115675475.29773

Cube

Length = n
Surface area 40142446756065414
Volume 5.4724132333658E+23
Space diagonal 141672945.11668

Equilateral Triangle

Length = n
Perimeter 245384739
Area 2.8970315550681E+15
Altitude 70836472.558338

Triangular Pyramid

Length = n
Surface area 2.8970315550681E+15
Volume 6.4493008446133E+22
Height 38558491.765909