3436
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
- 3
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 6020
- Proper Divisor Sum (Aliquot Sum)
- 2584
- 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
- 1716
- Möbius Function
- 0
- Radical
- 1718
- 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
- yes
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 149
- 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
- yes
- Odd
- no
Appears in sequences
- Number of primes < prime(n)^2.at n=40A000879
- Number of protruded partitions of n with largest part at most 10.at n=12A005116
- Coordination sequence T2 for Zeolite Code AST.at n=43A008037
- Coordination sequence for MgZn2, Position Zn1.at n=15A009937
- Numbers k such that Fibonacci(k) == 3 (mod k).at n=40A023175
- a(n) = 3*n^2 - 7*n + 6.at n=35A027599
- Clog sequence in base 2. Right to left concatenation of n,int(log_2(n)),int(log_2(int(log_2(n)))),... in base 2.at n=43A028423
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 56 ones.at n=0A031824
- Concatenation of n and n + 2 or {n,n+2}.at n=33A032607
- Decimal part of a(n)^(1/7) starts with n so that a(n) < a(n+1).at n=20A034072
- Decimal part of a(n)^(1/n) starts with a 'nine digits' anagram.at n=23A035136
- Numbers n such that string 3,6 occurs in the base 10 representation of n but not of n-1.at n=38A044368
- Numbers n such that string 3,6 occurs in the base 10 representation of n but not of n+1.at n=38A044749
- Numbers whose base-5 representation contains exactly two 1's and three 2's.at n=13A045228
- Values of m, the main key or generating number for Pythagorean triangles in which S (the odd short leg) and U (the hypotenuse) are twin primes.at n=22A051891
- Maximal number of 132 patterns in a permutation of 1,2,...,n.at n=35A061061
- Integer part of log(n^n)^log(1 + log(n)).at n=45A062433
- Numbers n such that n and 2^n end with the same two digits.at n=34A067865
- Numbers n such that Rd(n) + Ld(n) +/-1 is prime, where Rd and Ld are the right- and left-digital factorial functions.at n=39A071714
- Number of compositions (ordered partitions) of n into powers of 4.at n=27A087221