4364
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 7644
- Proper Divisor Sum (Aliquot Sum)
- 3280
- 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
- 2180
- Möbius Function
- 0
- Radical
- 2182
- 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
- 46
- 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
- Numbers k such that k and k+1 have same sum of divisors.at n=8A002961
- Sum of next n primes.at n=11A007468
- Coordination sequence T1 for Zeolite Code NON.at n=40A008212
- Coordination sequence T2 for Zeolite Code WEI.at n=46A009918
- Numbers with exactly 6 2's in their ternary expansion.at n=23A023704
- Expansion of log(1+x)*log(1+tanh(x))/2.at n=8A024331
- Numbers k such that 175*2^k+1 is prime.at n=19A032464
- Numbers whose sum of reciprocals of digits is the reciprocal of an integer.at n=42A037264
- Sum of reciprocals of digits = 1.at n=24A037268
- Numbers whose base-4 representation contains exactly four 0's and two 1's.at n=32A045035
- Numbers whose base-5 representation contains exactly two 1's and three 4's.at n=21A045258
- Numbers k such that k and k+1 have the same sum but an unequal number of divisors.at n=4A054007
- Numbers k such that sigma(k) divides sigma(k+1), where sigma(k) is sum of positive divisors of k.at n=16A058072
- Numbers k such that sigma(k+1) divides sigma(k), where sigma(k) is the sum of positive divisors of k.at n=17A058073
- Harmonic mean of digits is 4.at n=26A062182
- Row sums of signed triangle A062140 (generalized a=4 Laguerre).at n=5A062265
- Which composite number is n! ?: a(n) = k such that A002808(k) = n!, or 0 if n! is not composite.at n=6A065892
- Numbers k such that gcd(sigma(k), sigma(k+1)) > k.at n=24A066025
- Numbers k such that cyclotomic(k, prime(k)) is a prime number.at n=19A070523
- Numbers k such that phi(k) divides sigma(k+1) - sigma(k).at n=24A072611