3253
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 3254
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 3252
- Möbius Function
- -1
- Radical
- 3253
- 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
- 43
- 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
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 459
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Primes p such that (p+1)/2 is prime.at n=46A005383
- Number of protruded partitions of n with largest part at most 6.at n=12A005407
- Primes of form k^2 + 4.at n=13A005473
- Least d for which the number with continued fraction [n,n,n,n...] is in Q(sqrt(d)).at n=56A013946
- Primes whose digits are primes; primes having only {2, 3, 5, 7} as digits.at n=31A019546
- Smallest nonempty set S containing prime divisors of 6k+7 for each k in S.at n=45A020604
- Let q_k = p*(p+2) be product of k-th pair of twin primes; sequence gives values of p+2 such that (q_k)^2 > q_{k-i}*q_{k+i} for all 1 <= i <= k-1.at n=28A021007
- Initial members of prime triples (p, p+4, p+6).at n=33A022005
- Primes that remain prime through 2 iterations of the function f(x) = 5x + 8.at n=32A023255
- Primes that remain prime through 3 iterations of function f(x) = 5x + 8.at n=10A023286
- Primes that remain prime through 3 iterations of function f(x) = 10x + 3.at n=16A023300
- Numbers with exactly 7 1's in their ternary expansion.at n=4A023698
- Coordination sequence T1 for Zeolite Code SAT.at n=41A027373
- Squarefree n such that Q(sqrt(n)) has class number 5.at n=25A029705
- Numbers k such that 83*2^k+1 is prime.at n=8A032391
- Four consecutive primes whose 'last digit cycle' equals {1,3,7,9}.at n=41A032591
- Numbers whose set of base-9 digits is {1,4}.at n=27A032821
- Primes of form x^2+29*y^2.at n=31A033219
- Primes of form x^2+61*y^2.at n=31A033239
- Primes of form x^2+87*y^2.at n=32A033256