181997993 (number)

181997993 is an odd 9-digits composite number following 181997992 and preceding 181997994. In scientific notation, it is written as 1.81997993 × 10^8. The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors. There are 175980240 positive integers (up to 181997993) that are relatively prime to 181997993.

Interesting facts

Basic properties

Name

Name one hundred eighty-one million nine hundred ninety-seven thousand nine hundred ninety-three

Notation

Scientific notation 1.81997993 × 10^8
Engineering notation 1.81997993 × 10^6

Prime Factorization of 181997993

Prime Factorization 31 × 2797 × 2099

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 181997993
Product of the distinct prime numbers

The prime factorization of 181997993 is 31 × 2797 × 2099. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 3, 65, 95, 137, 186, 8945, 3979, 54139, 44196, 871081, 16977, 9021836, 7851256, 76161522, 10172646, 994529215, 324605613, 8123325738, 7796627665

Basic calculations (n = 181997993)

Multiplication

n×y
n×2 363995986
n×3 545993979
n×4 727991972
n×5 909989965

Division

n÷y
n÷2 90998996.5
n÷3 60665997.666667
n÷3 45499498.25
n÷5 36399598.6

Exponentiation

ny
n2 33123269456028049
n3 6.0283685625953E+24
n4 1.0971509794566E+33
n5 1.9967927627909E+41

Nth Root

y√n
2√n 13490.663178658
3√n 566.7030276937
4√n 116.14931415492
5√n 44.875915310938

Divisors of 181997993

1, 31, 2099, 2797, 65069, 86707, 5870903, 181997993

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -181997992
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 181997993 can be divided by 8 positive divisors. The sum of these divisors (counting 181997993) is 1, the average is 0.125.

Base conversion 181997993

Base System Value
2 Binary 1010110110010001000110101001
3 Ternary 110200110110022102
4 Quaternary 22312101012221
5 Quinary 333042413433
6 Senary 30020503145
8 Octal 1266210651
10 Decimal 181997993
12 Duodecimal 50b4aab5
16 Hexadecimal ad911a9
20 Vigesimal 2gh9ejd
36 Base36 30cujt

Cryptographic Hash Functions

md5 4e3db3f1834ee63b0fe13549c8827f91
sha1 bf9b1e84aef8d08ab58058348a4b2e9148e3e9ac
sha256 e839b13b8752e8591681ad686d3e1f7c64ccff52ec862b1094a537a6baf6251e
sha512 f123627c0b2d396b746dc5e6eeaf0c0ee35dd1efcad589325af71c26f98e819ffd4e6b286dfef63a79117bccb394339673dca825aff3fa8d1732990fa73dee25
ripemd-160 783b867ee3711e635125e4ffe0f512486c0c6b18

181997993 as geometric shapes

Circle

Radius = n
Diameter 363995986
Circumference 1143527115.5538
Area 1.0405981998593E+17

Sphere

Radius = n
Volume 2.5251571185841E+25
Surface area 4.1623927994373E+17
Circumference 1143527115.5538

Square

Length = n
Perimeter 727991972
Area 33123269456028049
Diagonal 257384030.02528

Cube

Length = n
Surface area 198739616736168294
Volume 6.0283685625953E+24
Space diagonal 315229770.75156

Equilateral Triangle

Length = n
Perimeter 545993979
Area 1.4342796402659E+16
Altitude 157614885.37578

Triangular Pyramid

Length = n
Surface area 1.4342796402659E+16
Volume 7.1045004835049E+23
Height 85794676.675095