522
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 9
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 1170
- Proper Divisor Sum (Aliquot Sum)
- 648
- Abundant Number
- yes
- Perfect Number
- no
- Deficient Number
- no
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 168
- Möbius Function
- 0
- Radical
- 174
- Omega Function (Ω)
- 4
- Little Omega Function (ω)
- 3
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
- yes
- Narcissistic Number
- no
- Collatz Steps
- 30
- Smith 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
Names
- German
- fünfhundertzweiundzwanzig· ordinal: fünfhundertzweiundzwanzigste
- English
- five hundred twenty-two· ordinal: five hundred twenty-second
- Spanish
- quinientos veintidós· ordinal: 522º
- French
- cinq cent vingt-deux· ordinal: cinq cent vingt-deuxième
- Italian
- cinquecentoventidue· ordinal: 522º
- Latin
- quingenti viginti duo· ordinal: 522.
- Portuguese
- quinhentos e vinte e dois· ordinal: 522º
Appears in sequences
- Number of series-parallel networks with n unlabeled edges. Also called yoke-chains by Cayley and MacMahon.at n=7A000084
- Generalized tangent numbers d_(n,2).at n=5A000176
- Number of partitions into non-integral powers.at n=7A000339
- Generalized tangent numbers d(6,n).at n=1A000411
- Number of bipartite partitions of n white objects and 4 black ones.at n=7A000465
- Number of ways to represent n using the binary operator a * b = 2^a + b.at n=11A000630
- Numbers that are the sum of 4 cubes in more than 1 way.at n=29A001245
- Generalized Euler numbers.at n=3A001587
- a(n) = a(n-1) + a(n-2) - 1 for n > 1, a(0)=3, a(1)=2.at n=13A001612
- A Fielder sequence. a(n) = a(n-1) + a(n-3) + a(n-4) + a(n-5), n >= 6.at n=11A001639
- Expansion of q^(-1/4) * (eta(q^4) / eta(q))^2 in powers of q.at n=11A001936
- Numbers k such that 15*2^k + 1 is prime.at n=18A002258
- Number of integral points in a certain sequence of closed quadrilaterals.at n=33A002579
- Number of equivalence classes of binary sequences of period n.at n=17A002729
- Number of bipartite partitions of n white objects and 7 black ones.at n=4A002756
- a(n) = n^2 written backwards.at n=14A002942
- Numbers that are the sum of 7 positive 5th powers.at n=16A003352
- Sum of 12 nonzero 8th powers.at n=2A003390
- Inconsummate numbers in base 10: no number is this multiple of the sum of its digits (in base 10).at n=48A003635
- Sum of 11 positive 9th powers.at n=1A004800