11730
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 12
- Digital Root
- 3
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 1
Divisibility
- Divisor Count
- 32
- Divisor Sum
- 31104
- Proper Divisor Sum (Aliquot Sum)
- 19374
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 2816
- Möbius Function
- -1
- Radical
- 11730
- Omega Function (Ω)
- 5
- Little Omega Function (ω)
- 5
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 104
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- yes
- Odd
- no
Appears in sequences
- Numbers k such that 21*2^k - 1 is prime.at n=24A002238
- Positive numbers having the same set of digits in base 9 and base 10.at n=41A037443
- Products of exactly 5 distinct primes.at n=30A046387
- Starting positions of strings of 3 1's in the decimal expansion of Pi.at n=9A050209
- Least k such that the least factor of k^Phi(k) -1 is the n-th prime.at n=11A066732
- a(0) = 1; for n>0, a(n) = 1 + coefficient of x^n in expansion of 1/Product_{ n >= 2, n not of the form 2^k-1 } (1-x^n).at n=54A078658
- Multiples of 17 containing a 17 in their decimal representation.at n=20A121037
- Floor of sum of the first n^2 square roots.at n=26A138357
- Sum of the lengths of the cycles at a vertex of the complete graph K_n.at n=4A141834
- Partial sums of A048995.at n=40A174514
- Numbers n such that 6n and 12n are both the average of twin prime pairs.at n=19A177680
- Number of nondecreasing arrangements of 5 numbers x(i) in -(n+3)..(n+3) with the sum of sign(x(i))*x(i)^2 zero.at n=39A188005
- Numbers such that the sum of the largest and the smallest prime divisor equals the sum of the other distinct prime divisors.at n=16A199745
- Primitive (squarefree) elements of A199745.at n=10A200145
- Number of horizontal, vertical, diagonal or knight-move neighbor colorings of an nX3 array with new integer colors introduced in row major order.at n=3A216692
- Number of horizontal, vertical, diagonal or knight-move neighbor colorings of an nX4 array with new integer colors introduced in row major order.at n=2A216693
- T(n,k)=Number of horizontal, vertical, diagonal or knight-move neighbor colorings of an nXk array with new integer colors introduced in row major order.at n=17A216694
- T(n,k)=Number of horizontal, vertical, diagonal or knight-move neighbor colorings of an nXk array with new integer colors introduced in row major order.at n=18A216694
- Number of partitions of n such that (greatest part) - (least part) < number of parts.at n=36A237830
- Numbers k with the property that p = k^2 - 13 and q = k^2 + 13 are consecutive primes.at n=25A248785