14123
domain: N
Properties
Digital Properties
- Digit Count
- 5
- Digit Sum
- 11
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 14640
- Proper Divisor Sum (Aliquot Sum)
- 517
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 13608
- Möbius Function
- 1
- Radical
- 14123
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 58
- 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
- Pisot sequence T(4,6), a(n) = floor(a(n-1)^2/a(n-2)).at n=30A020747
- Pisot sequence T(6,9), a(n) = floor(a(n-1)^2/a(n-2)).at n=29A020751
- Convolution of natural numbers with composite numbers.at n=35A023539
- Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (0, 1), (1, 0), (1, 1)}.at n=10A151399
- Numerator of Sum_{k=1..n} k^4 / Product_{k=1..n} k^4.at n=27A181426
- Number of n X n 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=3A223912
- Number of n X 4 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=3A223914
- T(n,k)=Number of nXk 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=24A223918
- Number of 4Xn 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=3A223921
- a(n) = smallest m such that A031131(m) = 2*n.at n=46A261525
- Indices of primes followed by a gap (distance to next larger prime) of 40.at n=44A320718
- Number of (0,1)-matrices with n ones, no zero rows or columns, and distinct rows.at n=6A321587
- Numbers whose multiset multisystem (A302242) is crossing.at n=38A324170
- MM-numbers of crossing set partitions.at n=14A324324
- Expansion of g^2/(1 + x*g), where g = 1+x*g^4 is the g.f. of A002293.at n=6A391378
- Indices of records in A210693.at n=19A391871