181997231 (number)

181997231 is an odd 9-digits composite number following 181997230 and preceding 181997232. In scientific notation, it is written as 1.81997231 × 10^8. The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors. There are 167997432 positive integers (up to 181997231) that are relatively prime to 181997231.

Interesting facts

Basic properties

Name

Name one hundred eighty-one million nine hundred ninety-seven thousand two hundred thirty-one

Notation

Scientific notation 1.81997231 × 10^8
Engineering notation 1.81997231 × 10^6

Prime Factorization of 181997231

Prime Factorization 13 × 13999787

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 181997231
Product of the distinct prime numbers

The prime factorization of 181997231 is 13 × 13999787. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 9, 97, 5, 660, 57, 6148, 2859, 68536, 7075, 259424, 585533, 959657, 6120818, 45636465, 14494573, 356111463, 704006827, 1410941827, 7562077766

Basic calculations (n = 181997231)

Multiplication

n×y
n×2 363994462
n×3 545991693
n×4 727988924
n×5 909986155

Division

n÷y
n÷2 90998615.5
n÷3 60665743.666667
n÷3 45499307.75
n÷5 36399446.2

Exponentiation

ny
n2 33122992091667361
n3 6.0282928431184E+24
n4 1.0971326051047E+33
n5 1.9967509616886E+41

Nth Root

y√n
2√n 13490.634936874
3√n 566.70223679064
4√n 116.14919257952
5√n 44.875877733046

Divisors of 181997231

1, 13, 13999787, 181997231

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -181997230
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 181997231 can be divided by 4 positive divisors. The sum of these divisors (counting 181997231) is 1, the average is 0.25.

Base conversion 181997231

Base System Value
2 Binary 1010110110010000111010101111
3 Ternary 110200110102021012
4 Quaternary 22312100322233
5 Quinary 333042402411
6 Senary 30020455435
8 Octal 1266207257
10 Decimal 181997231
12 Duodecimal 50b4a57b
16 Hexadecimal ad90eaf
20 Vigesimal 2gh9d1b
36 Base36 30ctyn

Cryptographic Hash Functions

md5 d511856d3f53b6ba2838913b5a91f1b0
sha1 a30977910fadde4ed3420cd9b18a48da4094e2e3
sha256 6c9940568a32b3cfb0127b01fe90412b13279cc539439c48a81d8969bcbb9f92
sha512 894e1f404602fb3f690b55f7f4d0e18af04031b0365871f803d5190b3b9b571426c08348d80353a9dc5feadb66ab006d232c0a9d7dc9be22004d20e93fd9be38
ripemd-160 603f9d2d12399b909c7f0ddb506047d97c7ce2eb

181997231 as geometric shapes

Circle

Radius = n
Diameter 363994462
Circumference 1143522327.7666
Area 1.0405894862009E+17

Sphere

Radius = n
Volume 2.5251254012838E+25
Surface area 4.1623579448038E+17
Circumference 1143522327.7666

Square

Length = n
Perimeter 727988924
Area 33122992091667361
Diagonal 257382952.39455

Cube

Length = n
Surface area 198737952550004166
Volume 6.0282928431184E+24
Space diagonal 315228450.92885

Equilateral Triangle

Length = n
Perimeter 545991693
Area 1.4342676300367E+16
Altitude 157614225.46442

Triangular Pyramid

Length = n
Surface area 1.4342676300367E+16
Volume 7.1044112472455E+23
Height 85794317.46485