14879
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 29
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 14880
- Proper Divisor Sum (Aliquot Sum)
- 1
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 14878
- Möbius Function
- -1
- Radical
- 14879
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 146
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- yes
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1743
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Number of paraffins.at n=39A005999
- Primes of form k^2 - 5.at n=26A028877
- Denominators of continued fraction convergents to sqrt(822).at n=7A042587
- Primes of the form k(k+1)/2+1 (i.e., central polygonal numbers, or one more than triangular numbers).at n=44A055469
- Number of conjugacy classes in the symmetric group S_n that have even number of elements.at n=34A060643
- Prime(n) and prime(n+3) use the same digits.at n=17A069795
- a(n) = (p^2 - p + 2)/2 for p = prime(n); number of squares modulo p^2.at n=39A072205
- Primes arising in A086498: a(n) = (2n)-th partial sum of A086498.at n=39A086499
- Primes p such that 2*p+1 and ((2*p+1)^2 + 1)/2 = p^2 + (p+1)^2 are primes.at n=22A098717
- Primes with digit sum = 29.at n=34A106766
- Numbers k such that k concatenated with k+3 gives the product of two numbers which differ by 9.at n=1A116182
- a(n) = n*(n^2 - 1)/2 - 1.at n=29A117560
- Prime quartet leaders: largest number of a prime quartet.at n=34A119892
- Pyramid game person numbers that have integer solutions.at n=21A135051
- Primes congruent to 27 mod 47.at n=38A142378
- Primes congruent to 39 mod 53.at n=36A142569
- Primes congruent to 11 mod 59.at n=29A142738
- Primes congruent to 56 mod 61.at n=31A142854
- Number of partitions of n minus number of divisors of n.at n=34A144300
- Primes p such that p^3-p-+1 are twin primes.at n=23A158295