446
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 14
- Digital Root
- 5
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 4
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 672
- Proper Divisor Sum (Aliquot Sum)
- 226
- 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
- 222
- Möbius Function
- 1
- Radical
- 446
- Omega Function (Ω)
- 2
- 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
- 71
- Smith Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- vierhundertsechsundvierzig· ordinal: vierhundertsechsundvierzigste
- English
- four hundred forty-six· ordinal: four hundred forty-sixth
- Spanish
- cuatrocientos cuarenta y seis· ordinal: 446º
- French
- quatre cent quarante-six· ordinal: quatre cent quarante-sixième
- Italian
- quattrocentoquarantasei· ordinal: 446º
- Latin
- quadringenti quadraginta sex· ordinal: 446.
- Portuguese
- quatrocentos e quarenta e seis· ordinal: 446º
Appears in sequences
- Number of inequivalent Costas arrays of order n under dihedral group.at n=20A001441
- Numbers n such that every digit contains a loop (version 2).at n=32A001744
- 2 together with primes multiplied by 2.at n=48A001747
- Harary-Read numbers: restricted hexagonal polyominoes (cata-polyhexes) with n cells.at n=8A002216
- Self numbers or Colombian numbers (numbers that are not of the form m + sum of digits of m for any m).at n=47A003052
- Expansion of 1/((1-x)*(1-x-2*x^3)).at n=11A003479
- a(n) = round(100*log_2(n)).at n=21A004263
- a(n) = ceiling(100*log_2(n)).at n=21A004264
- If k appears so do 2k+2 and 3k+3. (duplicates omitted.)at n=48A005660
- A grasshopper sequence: closed under n -> 2n+2 and 6n+6.at n=33A007319
- Inverse Moebius transform of triangular numbers.at n=25A007437
- Number of factors in the infinite word formed by the Kolakoski sequence A000002.at n=26A007782
- Coordination sequence T1 for Zeolite Code APD.at n=14A008034
- Coordination sequence T5 for Zeolite Code MTT.at n=13A008193
- Coordination sequence T4 for Zeolite Code SGT.at n=13A008232
- Coordination sequence T3 for Zeolite Code STI.at n=14A008236
- Molien series of 4-dimensional representation of cyclic group of order 4 over GF(2) (not Cohen-Macaulay).at n=20A008610
- x->x/2 if x even, x->3x-1 if x odd.at n=8A008900
- Coordination sequence T1 for Zeolite Code -CLO.at n=19A009850
- Coordination sequence T4 for Zeolite Code -PAR.at n=15A009858