1675
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 19
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 2108
- Proper Divisor Sum (Aliquot Sum)
- 433
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 1320
- Möbius Function
- 0
- Radical
- 335
- Omega Function (Ω)
- 3
- 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
- 135
- 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
- Reverse and Add! sequence starting with 196.at n=2A006960
- Coordination sequence T3 for Zeolite Code AFO.at n=27A008017
- Coordination sequence T4 for Zeolite Code CON.at n=29A009871
- Numbers k such that the continued fraction for sqrt(k) has period 30.at n=16A020369
- Place where n-th 1 occurs in A023133.at n=32A022795
- Positive integers which apparently never result in a palindrome under repeated applications of the function A056964(x) = x + (x with digits reversed).at n=17A023108
- a(n) = 2nd elementary symmetric function of the first n+1 positive integers congruent to 1 mod 4.at n=4A024378
- a(n) = position of 3*n^3 in A003072.at n=16A024970
- a(n) = (n+3)^2 - 6.at n=38A028878
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 11 ones.at n=1A031779
- Lucky numbers with size of gaps equal to 12 (upper terms).at n=19A031895
- Lucky numbers with size of gaps equal to 18 (lower terms).at n=10A031900
- Lucky numbers ending with digit 5.at n=43A032587
- Lucky numbers indexed by the lucky numbers (Lucky numbers with lucky number subscripts).at n=46A032639
- Coordination sequence T2 for Zeolite Code CFI.at n=27A033600
- G.f. satisfies A(x) = 1 + x*cycle_index(G,A(x)) where G = cyclic group of order 13 generated by (1,2,...,13).at n=6A036730
- Numbers k such that q^2 < p, where p=nextprime(k), q=nextprime(square root of k).at n=49A037208
- Coordination sequence T2 for Zeolite Code AFN.at n=29A038402
- Coordination sequence T1 for Zeolite Code AFN.at n=29A038403
- Numerators of continued fraction convergents to sqrt(754).at n=6A042452