5263
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 16
- Digital Root
- 7
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 5560
- Proper Divisor Sum (Aliquot Sum)
- 297
- 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
- 4968
- Möbius Function
- 1
- Radical
- 5263
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 191
- 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
- Coordination sequence T2 for Zeolite Code VET.at n=44A009903
- [ exp(1/23)*n! ].at n=6A030828
- a(n) = floor(10^5/n).at n=18A033427
- Base-2 digital convolution sequence.at n=40A033639
- a(1) = 1; a(n) is smallest number >= a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime.at n=42A033680
- Number of inequivalent binary [ n,3 ] codes of dimension <= 3 without zero columns.at n=24A034337
- Number of partitions of n with equal nonzero number of parts congruent to each of 1, 2 and 4 (mod 5).at n=55A035589
- Denominators of continued fraction convergents to sqrt(614).at n=10A042179
- Palindromes in factorial base.at n=42A046807
- Engel expansion of log(1/gamma) (where gamma is the Euler-Mascheroni constant A001620) = 0.549539...at n=6A059192
- Number of 2 X 2 singular integer matrices with elements from {0,...,n}.at n=26A059306
- Semiprimes p1*p2 such that p2 > p1 and p2 mod p1 = 11.at n=18A064909
- Number of 4-gonal compositions of n into positive parts.at n=40A069982
- Total number of parts in the tails below the Durfee squares of all partitions of n.at n=21A114089
- Slowest growing sequence of semiprimes having the semiprime-pairwise-sum property: for any i<j, a(i)+a(j) is semiprime.at n=5A116656
- Records in A117677.at n=35A117679
- Start with 1 and repeatedly reverse the digits and add 42 to get the next term.at n=25A118075
- Record values in A062039.at n=44A123643
- G.f.: A(x) = (1/x)*series_reversion(x^2/G124344(x)), where G124344(x) is the g.f. of A124344 and satisfies: A(x)^2 = (1/x)*G124344(x*A(x)).at n=7A124890
- a(n) = least k such that the remainder when 28^k is divided by k is n.at n=22A128368