181997994 (number)

181997994 is an even 9-digits composite number following 181997993 and preceding 181997995. In scientific notation, it is written as 1.81997994 × 10^8. The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors. There are 60640320 positive integers (up to 181997994) that are relatively prime to 181997994.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.81997994 × 10^8
Engineering notation 1.81997994 × 10^6

Prime Factorization of 181997994

Prime Factorization 2 × 3 × 3121 × 9719

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 181997994
Product of the distinct prime numbers

The prime factorization of 181997994 is 2 × 3 × 3121 × 9719. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 10, 63, 23, 158, 672, 4231, 4968, 9966, 7352, 353500, 884459, 7117353, 2364929, 48586128, 22710220, 789799539, 197117922, 892714310, 224476502

Basic calculations (n = 181997994)

Multiplication

n×y
n×2 363995988
n×3 545993982
n×4 727991976
n×5 909989970

Division

n÷y
n÷2 90998997
n÷3 60665998
n÷3 45499498.5
n÷5 36399598.8

Exponentiation

ny
n2 33123269820024036
n3 6.0283686619651E+24
n4 1.0971510035701E+33
n5 1.9967928176485E+41

Nth Root

y√n
2√n 13490.663215721
3√n 566.70302873163
4√n 116.14931431447
5√n 44.875915360252

Divisors of 181997994

1, 2, 3, 6, 3121, 6242, 9363, 9719, 18726, 19438, 29157, 58314, 30332999, 60665998, 90998997, 181997994

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 -181997993
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 181997994 can be divided by 16 positive divisors. The sum of these divisors (counting 181997994) is 1, the average is 0.0625.

Base conversion 181997994

Base System Value
2 Binary 1010110110010001000110101010
3 Ternary 110200110110022110
4 Quaternary 22312101012222
5 Quinary 333042413434
6 Senary 30020503150
8 Octal 1266210652
10 Decimal 181997994
12 Duodecimal 50b4aab6
16 Hexadecimal ad911aa
20 Vigesimal 2gh9eje
36 Base36 30cuju

Cryptographic Hash Functions

md5 dfa7d515585828d7a0392dba98ad577e
sha1 fe6267b6bfcd14c6e89b3a72ac7d977c9428ead6
sha256 535871d6b93aa44364eb61941ae9f05a675b2d871d5b593d4054db589d852acb
sha512 b4e91800233424c45d2d0d77c9afed0e7f3d7897baf8b852ea05143b34bb88276f059a8497575561f9ca38883ab2730fd1b3b62b58b63987451f8e34bedf9e17
ripemd-160 f0f3cb49ff3439bdf75edae6f59cddbab1438a8d

181997994 as geometric shapes

Circle

Radius = n
Diameter 363995988
Circumference 1143527121.837
Area 1.0405982112946E+17

Sphere

Radius = n
Volume 2.5251571602081E+25
Surface area 4.1623928451784E+17
Circumference 1143527121.837

Square

Length = n
Perimeter 727991976
Area 33123269820024036
Diagonal 257384031.4395

Cube

Length = n
Surface area 198739618920144216
Volume 6.0283686619651E+24
Space diagonal 315229772.48362

Equilateral Triangle

Length = n
Perimeter 545993982
Area 1.4342796560274E+16
Altitude 157614886.24181

Triangular Pyramid

Length = n
Surface area 1.4342796560274E+16
Volume 7.1045006006133E+23
Height 85794677.146499