81661610 (number)

81661610 is an even 8-digits composite number following 81661609 and preceding 81661611. In scientific notation, it is written as 8.1661610 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 32176848 positive integers (up to 81661610) that are relatively prime to 81661610.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred sixty-one thousand six hundred ten

Notation

Scientific notation 8.1661610 × 10^7
Engineering notation 8.1661610 × 10^6

Prime Factorization of 81661610

Prime Factorization 2 × 5 × 67 × 121883

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81661610
Product of the distinct prime numbers

The prime factorization of 81661610 is 2 × 5 × 67 × 121883. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 62, 97, 630, 135, 3922, 7134, 18889, 63090, 987914, 13574, 8877136, 7439642, 46434811, 45978789, 889207771, 233195902, 8460038083, 5993195961

Basic calculations (n = 81661610)

Multiplication

n×y
n×2 163323220
n×3 244984830
n×4 326646440
n×5 408308050

Division

n÷y
n÷2 40830805
n÷3 27220536.666667
n÷3 20415402.5
n÷5 16332322

Exponentiation

ny
n2 6668618547792100
n3 5.4457012708856E+23
n4 4.4470473335957E+31
n5 3.6315304500763E+39

Nth Root

y√n
2√n 9036.6813598799
3√n 433.84971117719
4√n 95.061460960159
5√n 38.229937463531

Divisors of 81661610

1, 2, 5, 10, 67, 134, 335, 670, 121883, 243766, 609415, 1218830, 8166161, 16332322, 40830805, 81661610

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 -81661609
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 81661610 can be divided by 16 positive divisors. The sum of these divisors (counting 81661610) is 1, the average is 0.0625.

Base conversion 81661610

Base System Value
2 Binary 100110111100000111010101010
3 Ternary 12200122211200002
4 Quaternary 10313200322222
5 Quinary 131401132420
6 Senary 12034143002
8 Octal 467407252
10 Decimal 81661610
12 Duodecimal 23421a62
16 Hexadecimal 4de0eaa
20 Vigesimal 15a7e0a
36 Base36 1cmai2

Cryptographic Hash Functions

md5 5e1e10a186395af29e2277689de205c2
sha1 1a73e68257bb9b809aad6efd3dd265d8409ff286
sha256 1792f5b9e0fd63fc695a71b0a3d528240445469b7c92cb2a6b52ffabaad7c286
sha512 e319363635b56ff4ccb6bd70e19b65b79ce4d8782f0a16da0bc3f85443a5d2affc818ce4b3ecd04072b65a23bacb077ab135fd35a08c9a6f750fccf2dbfc4c09
ripemd-160 c3edabbb38565253085b5164874cd54e6fceac70

81661610 as geometric shapes

Circle

Radius = n
Diameter 163323220
Circumference 513095028.11263
Area 2.0950083039336E+16

Sphere

Radius = n
Volume 2.2810900141679E+24
Surface area 8.3800332157345E+16
Circumference 513095028.11263

Square

Length = n
Perimeter 326646440
Area 6668618547792100
Diagonal 115486956.38722

Cube

Length = n
Surface area 40011711286752600
Volume 5.4457012708856E+23
Space diagonal 141442057.54787

Equilateral Triangle

Length = n
Perimeter 244984830
Area 2.887596535268E+15
Altitude 70721028.773937

Triangular Pyramid

Length = n
Surface area 2.887596535268E+15
Volume 6.4178204949324E+22
Height 38495652.129074