14365
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 19764
- Proper Divisor Sum (Aliquot Sum)
- 5399
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 9984
- Möbius Function
- 0
- Radical
- 1105
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 3
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- yes
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- yes
- 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
- 151
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- 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
- a(n) = (2*n+1)*(4*n+1).at n=42A014634
- Numbers that are the sum of 2 nonzero squares in exactly 6 ways.at n=6A025289
- Numbers that are the sum of 2 nonzero squares in 5 or more ways.at n=9A025296
- Numbers that are the sum of 2 nonzero squares in 6 or more ways.at n=6A025297
- Numbers that are the sum of 2 distinct nonzero squares in exactly 6 ways.at n=6A025307
- Numbers that are the sum of 2 distinct nonzero squares in 5 or more ways.at n=8A025315
- Numbers that are the sum of 2 distinct nonzero squares in 6 or more ways.at n=6A025316
- a(n) = n^2*(n^2 + 1)/2.at n=13A037270
- Numbers n such that n | 11^n + 10^n + 9^n + 8^n + 7^n + 6^n + 5^n + 4^n + 3^n + 2^n.at n=22A057288
- Triangular numbers with property that digits alternate in parity.at n=28A068882
- Triangular numbers in which the k-th significant digit either divides k or is a multiple of k.at n=24A069559
- Terms of A072390 (sums of two powers of 13) divided by 2.at n=12A073220
- Triangular numbers which are the sum of two squares.at n=26A073613
- Terms of A073872 that do not change their position in the rearrangement; i.e., values of A073872(n) which equal n(n+1)/2.at n=12A073873
- Smaller of the two successive triangular numbers which differ in the use of only one digit.at n=30A077759
- a(n) = (9n^4 - 18n^3 + 18n^2 - 9n + 2)/2.at n=7A079903
- Main diagonal of table A083050.at n=16A083052
- Triangular numbers which are one more than a product of distinct triangular numbers.at n=13A083517
- Triangular numbers whose sum of aliquot divisors is a prime number.at n=14A083676
- First occurrence of n in A084521.at n=10A084527