181997668 (number)

181997668 is an even 9-digits composite number following 181997667 and preceding 181997669. In scientific notation, it is written as 1.81997668 × 10^8. The sum of its digits is 55. It has a total of 3 prime factors and 6 positive divisors. There are 90998832 positive integers (up to 181997668) that are relatively prime to 181997668.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.81997668 × 10^8
Engineering notation 1.81997668 × 10^6

Prime Factorization of 181997668

Prime Factorization 2 × 2 × 45499417

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 90998834
Product of the distinct prime numbers

The prime factorization of 181997668 is 2 × 2 × 45499417. Since it has a total of 3 prime factors.

Most popular turbo-numbers

8, 6, 39, 53, 879, 355, 5612, 2317, 54956, 22061, 679567, 911210, 181118, 3577765, 97000758, 10990065, 682695519, 929322841, 5402230510, 7631664912

Basic calculations (n = 181997668)

Multiplication

n×y
n×2 363995336
n×3 545993004
n×4 727990672
n×5 909988340

Division

n÷y
n÷2 90998834
n÷3 60665889.333333
n÷3 45499417
n÷5 36399533.6

Exponentiation

ny
n2 33123151157438224
n3 6.0283362674653E+24
n4 1.0971431425985E+33
n5 1.9967749341512E+41

Nth Root

y√n
2√n 13490.651133285
3√n 566.70269036655
4√n 116.14926230194
5√n 44.875899283637

Divisors of 181997668

1, 2, 4, 45499417, 90998834, 181997668

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 -181997667
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 181997668 can be divided by 6 positive divisors. The sum of these divisors (counting 181997668) is 1, the average is 0.16666666666667.

Base conversion 181997668

Base System Value
2 Binary 1010110110010001000001100100
3 Ternary 110200110102212101
4 Quaternary 22312101001210
5 Quinary 333042411133
6 Senary 30020501444
8 Octal 1266210144
10 Decimal 181997668
12 Duodecimal 50b4a884
16 Hexadecimal ad91064
20 Vigesimal 2gh9e38
36 Base36 30cuas

Cryptographic Hash Functions

md5 1a82f1664b0771d8ced1bd85bf6d5842
sha1 bb3f7ef621c1308c2b1c6ea13e40543038a6bc14
sha256 8cb2b733ced0898dd88ab408206691922e754080d8f4689cb3532e9b5418be13
sha512 9afdbd1fe8a48c3041b824f303035e85e2d8cf6b24ead974584bf892a35929e9bbdc4833b47d5dfbf387342a06c256fdc90da3a768d2478c55900000366bdc1b
ripemd-160 5a8ca2f9dfa2c7f4f280e74d6f0418dd03f7cf09

181997668 as geometric shapes

Circle

Radius = n
Diameter 363995336
Circumference 1143525073.5185
Area 1.0405944833995E+17

Sphere

Radius = n
Volume 2.5251435908317E+25
Surface area 4.1623779335981E+17
Circumference 1143525073.5185

Square

Length = n
Perimeter 727990672
Area 33123151157438224
Diagonal 257383570.40588

Cube

Length = n
Surface area 198738906944629344
Volume 6.0283362674653E+24
Space diagonal 315229207.83505

Equilateral Triangle

Length = n
Perimeter 545993004
Area 1.4342745177867E+16
Altitude 157614603.91753

Triangular Pyramid

Length = n
Surface area 1.4342745177867E+16
Volume 7.1044624233291E+23
Height 85794523.468625