4132
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 10
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 7238
- Proper Divisor Sum (Aliquot Sum)
- 3106
- 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
- 2064
- Möbius Function
- 0
- Radical
- 2066
- 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
- 157
- 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
- Squares written in base 7.at n=37A002440
- Number of connected trivalent bipartite graphs with 2n nodes.at n=8A006823
- Coordination sequence T1 for Zeolite Code NES.at n=41A008205
- Coordination sequence T3 for Zeolite Code PAU.at n=47A008221
- Coordination sequence T6 for Zeolite Code PAU.at n=47A008224
- Triangle read by rows: T(n,k) is the number of simple regular connected bipartite graphs with 2n nodes and degree k, (2 <= k <= n).at n=46A008326
- Numbers k such that the continued fraction for sqrt(k) has period 70.at n=9A020409
- Expansion of Product_{m>=1} (1+x^m)^16.at n=4A022581
- Decimal representation of permutations of lengths 1, 2, 3, ... arranged lexicographically.at n=28A030299
- Numbers whose base-4 representation has 4 more 0's than 3's.at n=35A031465
- Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 32.at n=30A031530
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 30 ones.at n=25A031798
- Incrementally largest terms in the continued fraction for Laplace's limit constant.at n=5A033262
- Can express a(n) with the digits of a(n)^2 in order, only adding plus signs.at n=38A038206
- Coordination sequence for Zeolite Code DFT.at n=44A038408
- a(n)=(s(n)+6)/10, where s(n)=n-th base 10 palindrome that starts with 4.at n=35A043083
- Numbers whose base-16 representation has exactly 4 runs.at n=18A043677
- Numbers whose base-4 representation contains exactly four 0's and two 1's.at n=14A045035
- Numbers whose base-4 representation contains exactly four 0's and one 2.at n=29A045058
- Numbers whose base-4 representation contains exactly four 0's and no 3's.at n=32A045081