15467
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 23
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 15468
- 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
- 15466
- Möbius Function
- -1
- Radical
- 15467
- 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
- 84
- 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
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 1807
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Number of n-node rooted trees of height at most 3.at n=18A001383
- Numbers k such that the continued fraction for sqrt(k) has period 98.at n=28A020437
- Primes p from A031924 such that A052180(primepi(p)) = 31.at n=5A052237
- Prime number spiral (clockwise, Southwest spoke).at n=21A054568
- Centered 22-gonal numbers.at n=37A069173
- a(n) = prime(n^2 + n + 1).at n=42A122566
- a(n) is the smallest odd prime p such that 2^n*p has n digits but has at most two distinct digits; or 0 if no such prime exists.at n=5A124244
- Primes congruent to 10 mod 41.at n=40A142207
- Primes congruent to 4 mod 47.at n=36A142356
- Primes congruent to 44 mod 53.at n=33A142574
- Primes congruent to 9 mod 59.at n=32A142736
- Primes congruent to 34 mod 61.at n=28A142832
- Primes of the form 43*n^2 + 3*n + 1.at n=31A185658
- Primes of the form 7n^2 + 4.at n=12A201605
- Number of equivalence classes of compositions of n where two compositions a,b are considered equivalent if the summands of a can be permuted into the summands of b with an even number of transpositions.at n=35A218004
- Primes p such that f(f(p)) is prime where f(x) = x^8 + 1.at n=32A236070
- Primes p such that p1 = ceiling(p/2) + p is prime and p2 = floor(p1/2) + p is prime.at n=33A242366
- Primes 8k + 3 preceding the maximal gaps in A269420.at n=8A269421
- Centered 22-gonal primes.at n=18A276262
- Balanced primes of order one ending in 7.at n=36A303094