81193145 (number)

81193145 is an odd 8-digits composite number following 81193144 and preceding 81193146. In scientific notation, it is written as 8.1193145 × 10^7. The sum of its digits is 32. It has a total of 5 prime factors and 32 positive divisors. There are 57304000 positive integers (up to 81193145) that are relatively prime to 81193145.

Interesting facts

Basic properties

Name

Name eighty-one million one hundred ninety-three thousand one hundred forty-five

Notation

Scientific notation 8.1193145 × 10^7
Engineering notation 8.1193145 × 10^6

Prime Factorization of 81193145

Prime Factorization 11 × 5 × 191 × 59 × 131

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81193145
Product of the distinct prime numbers

The prime factorization of 81193145 is 11 × 5 × 191 × 59 × 131. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 4, 40, 70, 915, 287, 865, 1562, 10288, 60142, 658668, 661636, 501034, 2361289, 95771228, 4133822, 654768963, 487833070, 2210904716, 9003634968

Basic calculations (n = 81193145)

Multiplication

n×y
n×2 162386290
n×3 243579435
n×4 324772580
n×5 405965725

Division

n÷y
n÷2 40596572.5
n÷3 27064381.666667
n÷3 20298286.25
n÷5 16238629

Exponentiation

ny
n2 6592326794991025
n3 5.3525174535309E+23
n4 4.3458772571957E+31
n5 3.5285544229569E+39

Nth Root

y√n
2√n 9010.7238887894
3√n 433.01850340597
4√n 94.924832835193
5√n 38.185974025354

Divisors of 81193145

1, 5, 11, 55, 59, 131, 191, 295, 649, 655, 955, 1441, 2101, 3245, 7205, 7729, 10505, 11269, 25021, 38645, 56345, 85019, 123959, 125105, 275231, 425095, 619795, 1376155, 1476239, 7381195, 16238629, 81193145

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 -81193144
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 81193145 can be divided by 32 positive divisors. The sum of these divisors (counting 81193145) is 1, the average is 0.03125.

Base conversion 81193145

Base System Value
2 Binary 100110101101110100010111001
3 Ternary 12122210001001112
4 Quaternary 10311232202321
5 Quinary 131241140040
6 Senary 12020130105
8 Octal 465564271
10 Decimal 81193145
12 Duodecimal 23236935
16 Hexadecimal 4d6e8b9
20 Vigesimal 15792h5
36 Base36 1cc915

Cryptographic Hash Functions

md5 453918a7229d798f51530fd430eac020
sha1 9ca140bcf97157546b19033761d3e33e9d0381eb
sha256 01eb744898caba919a5b1f5c4a14aa964503927f093f4442b05201efd5b550b2
sha512 3828607ab053883deeaf9c658fa75182b5063012720b79f3af0259b843573cf8ff8a62d32ebfb0710442745e2df1fbe9180a23b7c5fc652c2dab608ccbacbacf
ripemd-160 152103a33de52224f144d55b76a17e98c549305e

81193145 as geometric shapes

Circle

Radius = n
Diameter 162386290
Circumference 510151575.7077
Area 2.0710405429207E+16

Sphere

Radius = n
Volume 2.2420572680298E+24
Surface area 8.2841621716828E+16
Circumference 510151575.7077

Square

Length = n
Perimeter 324772580
Area 6592326794991025
Diagonal 114824446.83073

Cube

Length = n
Surface area 39553960769946150
Volume 5.3525174535309E+23
Space diagonal 140630652.36631

Equilateral Triangle

Length = n
Perimeter 243579435
Area 2.8545612372555E+15
Altitude 70315326.183153

Triangular Pyramid

Length = n
Surface area 2.8545612372555E+15
Volume 6.3080023130184E+22
Height 38274815.610242