181997809 (number)

181997809 is an odd 9-digits composite number following 181997808 and preceding 181997810. In scientific notation, it is written as 1.81997809 × 10^8. The sum of its digits is 52. It has a total of 3 prime factors and 6 positive divisors. There are 155998080 positive integers (up to 181997809) that are relatively prime to 181997809.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.81997809 × 10^8
Engineering notation 1.81997809 × 10^6

Prime Factorization of 181997809

Prime Factorization 7 × 7 × 3714241

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 25999687
Product of the distinct prime numbers

The prime factorization of 181997809 is 7 × 7 × 3714241. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 5, 88, 11, 33, 472, 8658, 743, 79411, 65806, 298408, 826422, 6230342, 3571797, 6914967, 1093566, 658627094, 416143253, 8036427422, 754890355

Basic calculations (n = 181997809)

Multiplication

n×y
n×2 363995618
n×3 545993427
n×4 727991236
n×5 909989045

Division

n÷y
n÷2 90998904.5
n÷3 60665936.333333
n÷3 45499452.25
n÷5 36399561.8

Exponentiation

ny
n2 33123202480800481
n3 6.0283502785691E+24
n4 1.0971465425841E+33
n5 1.9967826690223E+41

Nth Root

y√n
2√n 13490.656359125
3√n 566.70283671469
4√n 116.14928479816
5√n 44.875906237023

Divisors of 181997809

1, 7, 49, 3714241, 25999687, 181997809

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -181997808
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 181997809 can be divided by 6 positive divisors. The sum of these divisors (counting 181997809) is 1, the average is 0.16666666666667.

Base conversion 181997809

Base System Value
2 Binary 1010110110010001000011110001
3 Ternary 110200110110001121
4 Quaternary 22312101003301
5 Quinary 333042412214
6 Senary 30020502241
8 Octal 1266210361
10 Decimal 181997809
12 Duodecimal 50b4a981
16 Hexadecimal ad910f1
20 Vigesimal 2gh9ea9
36 Base36 30cuep

Cryptographic Hash Functions

md5 69229e7ffd7fb901c25f60d0e7aceb8a
sha1 63bead0a013738b67ee8870e3e3ba62a19acdb07
sha256 07d3b8d9634d5236fddcf0e61f347bdd3c43bead73c8456afc7d02363d60a7fb
sha512 aaf504ee433953c1c49e9ab6b47ff2d7d1d8d11f99973fc22c87f5f44b9166834e4d22ddd83e8c08e981b9332e3004cb30d11593aa7de767a9dc59dd99cc5dca
ripemd-160 34e3a1eb79e8d8c635b8d4f39cc8d6ea9e44d16d

181997809 as geometric shapes

Circle

Radius = n
Diameter 363995618
Circumference 1143525959.4477
Area 1.0405960957705E+17

Sphere

Radius = n
Volume 2.5251494597891E+25
Surface area 4.162384383082E+17
Circumference 1143525959.4477

Square

Length = n
Perimeter 727991236
Area 33123202480800481
Diagonal 257383769.80999

Cube

Length = n
Surface area 198739214884802886
Volume 6.0283502785691E+24
Space diagonal 315229452.05422

Equilateral Triangle

Length = n
Perimeter 545993427
Area 1.4342767401534E+16
Altitude 157614726.02711

Triangular Pyramid

Length = n
Surface area 1.4342767401534E+16
Volume 7.1044789355733E+23
Height 85794589.936663