81016845 (number)

81016845 is an odd 8-digits composite number following 81016844 and preceding 81016846. In scientific notation, it is written as 8.1016845 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 33384960 positive integers (up to 81016845) that are relatively prime to 81016845.

Interesting facts

Basic properties

Name

Name eighty-one million sixteen thousand eight hundred forty-five

Notation

Scientific notation 8.1016845 × 10^7
Engineering notation 8.1016845 × 10^6

Prime Factorization of 81016845

Prime Factorization 15 × 13 × 49 × 61 × 139

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81016845
Product of the distinct prime numbers

The prime factorization of 81016845 is 15 × 13 × 49 × 61 × 139. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 8, 79, 27, 965, 106, 3136, 5458, 28879, 29123, 924289, 655030, 2977939, 3587417, 19302372, 67042272, 205207693, 91856009, 3839978540, 8856009241

Basic calculations (n = 81016845)

Multiplication

n×y
n×2 162033690
n×3 243050535
n×4 324067380
n×5 405084225

Division

n÷y
n÷2 40508422.5
n÷3 27005615
n÷3 20254211.25
n÷5 16203369

Exponentiation

ny
n2 6563729173754025
n3 5.3177262909201E+23
n4 4.308254066639E+31
n5 3.4904115193751E+39

Nth Root

y√n
2√n 9000.9357846837
3√n 432.70486246268
4√n 94.873261695189
5√n 38.169376461444

Divisors of 81016845

1, 13, 15, 49, 61, 139, 195, 637, 735, 793, 915, 1807, 2085, 2989, 6811, 8479, 9555, 11895, 27105, 38857, 44835, 88543, 102165, 110227, 127185, 415471, 582855, 1328145, 1653405, 5401123, 6232065, 81016845

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 -81016844
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 81016845 can be divided by 32 positive divisors. The sum of these divisors (counting 81016845) is 1, the average is 0.03125.

Base conversion 81016845

Base System Value
2 Binary 100110101000011100000001101
3 Ternary 12122110002012220
4 Quaternary 10311003200031
5 Quinary 131220014340
6 Senary 12012245553
8 Octal 465034015
10 Decimal 81016845
12 Duodecimal 231708b9
16 Hexadecimal 4d4380d
20 Vigesimal 1567225
36 Base36 1c8gzx

Cryptographic Hash Functions

md5 fd80b69d31e72052d3b880e61fbd884f
sha1 4ccfe9d17e9d360d2f3e72520d6ac678b380ffcc
sha256 5fac2f7cc10ba7dafe22e3e12756ee3dda9b5d73aeb840a3898b353821117845
sha512 7e352261c649bc0349ae2dd2f8e46edb81772b97fdbe1a45898f99b13927d9ad4a60f10793cd556d6493d6126eb5819878a85cc14e61992b253a383d6be85d4e
ripemd-160 3103f57586392a7996ba6aec83707a72aae7dae2

81016845 as geometric shapes

Circle

Radius = n
Diameter 162033690
Circumference 509043850.13805
Area 2.0620563352419E+16

Sphere

Radius = n
Volume 2.2274839799141E+24
Surface area 8.2482253409675E+16
Circumference 509043850.13805

Square

Length = n
Perimeter 324067380
Area 6563729173754025
Diagonal 114575120.97968

Cube

Length = n
Surface area 39382375042524150
Volume 5.3177262909201E+23
Space diagonal 140325291.80893

Equilateral Triangle

Length = n
Perimeter 243050535
Area 2.842178104016E+15
Altitude 70162645.904466

Triangular Pyramid

Length = n
Surface area 2.842178104016E+15
Volume 6.2670005346726E+22
Height 38191706.993226