14579
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 26
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 14880
- Proper Divisor Sum (Aliquot Sum)
- 301
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 14280
- Möbius Function
- 1
- Radical
- 14579
- Omega Function (Ω)
- 2
- Little Omega Function (ω)
- 2
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
- 120
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- 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
- no
- Odd
- yes
Appears in sequences
- Smallest number m with nonzero digits such that A046810(m)=n.at n=28A046813
- a(n) is the least integer that has exactly n anagrams that are primes.at n=28A046890
- a(n) is the least number with exactly n permutations of digits that are primes.at n=28A046893
- Numbers k such that k^8 == 1 (mod 9^3).at n=39A056084
- McKay-Thompson series of class 42D for Monster.at n=52A058674
- Numbers k such that the smoothly undulating palindromic number (75*10^k - 57)/99 is a prime.at n=10A062224
- Integers 1 through n written in primorial base, summed as if decimal.at n=35A122613
- a(n) = 729*n - 1.at n=19A158395
- a(n) = 20*n^2 - 1.at n=26A158491
- Sum of the even-indexed parts of all partitions of n.at n=23A207382
- Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2*w^2 < x^2 + y^2.at n=29A211800
- Number of compositions of n such that no two adjacent parts are equal, and the first part is not equal to the last part if there is more than one part.at n=19A212322