81725910 (number)

81725910 is an even 8-digits composite number following 81725909 and preceding 81725911. In scientific notation, it is written as 8.1725910 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 18680160 positive integers (up to 81725910) that are relatively prime to 81725910.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty-five thousand nine hundred ten

Notation

Scientific notation 8.1725910 × 10^7
Engineering notation 8.1725910 × 10^6

Prime Factorization of 81725910

Prime Factorization 2 × 3 × 7 × 5 × 389171

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81725910
Product of the distinct prime numbers

The prime factorization of 81725910 is 2 × 3 × 7 × 5 × 389171. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 7, 33, 306, 367, 463, 5148, 90832, 88109, 662771, 248041, 8599159, 6170643, 13786756, 55523548, 202936722, 117420079, 709448790, 5110583686

Basic calculations (n = 81725910)

Multiplication

n×y
n×2 163451820
n×3 245177730
n×4 326903640
n×5 408629550

Division

n÷y
n÷2 40862955
n÷3 27241970
n÷3 20431477.5
n÷5 16345182

Exponentiation

ny
n2 6679124365328100
n3 5.4585751675961E+23
n4 4.4610702287519E+31
n5 3.6458502401866E+39

Nth Root

y√n
2√n 9040.2383818127
3√n 433.96355176789
4√n 95.080168183553
5√n 38.235955985867

Divisors of 81725910

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 389171, 778342, 1167513, 1945855, 2335026, 2724197, 3891710, 5448394, 5837565, 8172591, 11675130, 13620985, 16345182, 27241970, 40862955, 81725910

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81725909
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81725910 can be divided by 32 positive divisors. The sum of these divisors (counting 81725910) is 1, the average is 0.03125.

Base conversion 81725910

Base System Value
2 Binary 100110111110000100111010110
3 Ternary 12200210002212120
4 Quaternary 10313300213112
5 Quinary 131410212120
6 Senary 12035400410
8 Octal 467604726
10 Decimal 81725910
12 Duodecimal 23453106
16 Hexadecimal 4df09d6
20 Vigesimal 15afefa
36 Base36 1cno46

Cryptographic Hash Functions

md5 8f2bfadc973846a4ecd6f3f43b3c626d
sha1 87bab40fcec7a2ba9910df2497f4e2f4157b8db6
sha256 fd3025f36f69c1b1a579942a4f54413aeb316467ef0239710ba30db7891508c6
sha512 15ec8ad84a2ddff273c89cecc07d44f2d87cac9d779340110249350b7043f9fa4e1c83c71e5f0f77c76f57d8973c60c6bdee4c190aacac912ed1cd526058b8f4
ripemd-160 32e038a1f2be9792f4e8be46acf6d5a23def3415

81725910 as geometric shapes

Circle

Radius = n
Diameter 163451820
Circumference 513499036.92788
Area 2.0983088038527E+16

Sphere

Radius = n
Volume 2.2864826194117E+24
Surface area 8.3932352154109E+16
Circumference 513499036.92788

Square

Length = n
Perimeter 326903640
Area 6679124365328100
Diagonal 115577890.31928

Cube

Length = n
Surface area 40074746191968600
Volume 5.4585751675961E+23
Space diagonal 141553428.4148

Equilateral Triangle

Length = n
Perimeter 245177730
Area 2.8921456877049E+15
Altitude 70776714.207401

Triangular Pyramid

Length = n
Surface area 2.8921456877049E+15
Volume 6.4329925277062E+22
Height 38525963.439761