846
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 18
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 12
- Divisor Sum
- 1872
- Proper Divisor Sum (Aliquot Sum)
- 1026
- 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
- 276
- Möbius Function
- 0
- Radical
- 282
- 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
- 33
- 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
- achthundertsechsundvierzig· ordinal: achthundertsechsundvierzigste
- English
- eight hundred forty-six· ordinal: eight hundred forty-sixth
- Spanish
- ochocientos cuarenta y seis· ordinal: 846º
- French
- huit cent quarante-six· ordinal: huit cent quarante-sixième
- Italian
- ottocentoquarantasei· ordinal: 846º
- Latin
- octingenti quadraginta sex· ordinal: 846.
- Portuguese
- oitocentos e quarenta e seis· ordinal: 846º
Appears in sequences
- Triangulations of the disk G_{n,0}.at n=6A002709
- Low-temperature series for partition function for spin-1/2 Ising model on f.c.c. lattice.at n=25A002892
- a(n) = ceiling(1000*log_10(n)).at n=6A004227
- a(n) = round(n*phi^8), where phi is the golden ratio, A001622.at n=18A004943
- a(n) = ceiling(n*phi^8), where phi is the golden ratio, A001622.at n=18A004963
- Numbers k such that k^16 + 1 is prime.at n=41A006313
- Impractical numbers: even abundant numbers (A173490) that are not practical(2) (A007620).at n=48A007621
- Number of factors in the infinite word formed by the Kolakoski sequence A000002.at n=33A007782
- Coordination sequence T1 for Zeolite Code AFR.at n=22A008019
- Coordination sequence T2 for Zeolite Code AST.at n=21A008037
- Coordination sequence T2 for Zeolite Code EMT.at n=24A008087
- Coordination sequence T1 for Zeolite Code EPI.at n=18A008090
- Coordination sequence T6 for Zeolite Code EUO.at n=18A008101
- Coordination sequence T5 for Zeolite Code MTW.at n=19A008200
- Multiples of 18.at n=47A008600
- Dates of birth of Kings Louis I, II, ... of France.at n=1A008746
- Aliquot sequence starting at 180.at n=5A008891
- If a, b in sequence, so is a*b+2.at n=32A009299
- Expansion of log(1+x)*exp(tan(x)).at n=7A009419
- Expansion of log(1+x)*exp(tanh(x)).at n=7A009420