893
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 20
- Digital Root
- 2
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 960
- Proper Divisor Sum (Aliquot Sum)
- 67
- 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
- 828
- Möbius Function
- 1
- Radical
- 893
- 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
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 72
- 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
- no
- Odd
- yes
Names
- German
- achthundertdreiundneunzig· ordinal: achthundertdreiundneunzigste
- English
- eight hundred ninety-three· ordinal: eight hundred ninety-third
- Spanish
- ochocientos noventa y tres· ordinal: 893º
- French
- huit cent quatre-vingt-treize· ordinal: huit cent quatre-vingt-treizième
- Italian
- ottocentonovantatre· ordinal: 893º
- Latin
- octingenti nonaginta tres· ordinal: 893.
- Portuguese
- oitocentos e noventa e três· ordinal: 893º
Appears in sequences
- Numbers k such that phi(2k-1) < phi(2k), where phi is Euler's totient function A000010.at n=11A001836
- Number of partitions of n into nonprime parts.at n=39A002095
- a(n) = a(n-1) + 2*a(n-3) with a(0)=a(1)=1, a(2)=3.at n=13A003229
- Numbers that are the sum of 12 positive 5th powers.at n=41A003357
- Divisible only by primes congruent to 5 mod 7.at n=40A004623
- a(n) = round(n*phi^8), where phi is the golden ratio, A001622.at n=19A004943
- a(n) = ceiling(n*phi^8), where phi is the golden ratio, A001622.at n=19A004963
- a(n) = n*(5*n - 1)/2.at n=19A005476
- Coordination sequence T1 for Zeolite Code FAU.at n=25A008105
- Coordination sequence T10 for Zeolite Code MFI.at n=19A008162
- Composite but smallest prime factor >= 17.at n=21A008367
- Multiples of 19.at n=47A008601
- Molien series for Conway group Con.0.at n=30A008925
- Coordination sequence T5 for Zeolite Code CON.at n=21A009872
- a(0) = 1, a(n) = 11*n^2 + 2 for n>0.at n=9A010003
- a(n) = floor( n*(n-1)*(n-2)/22 ).at n=28A011904
- Numbers k such that phi(k + 7) | sigma(k) for k not congruent to 0 (mod 3).at n=49A015848
- Numbers k such that sigma(k) = sigma(k+6).at n=10A015866
- Coordination sequence T5 for Zeolite Code TER.at n=20A016437
- Coordination sequence T7 for Zeolite Code TER.at n=20A016439