895
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 22
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 1080
- Proper Divisor Sum (Aliquot Sum)
- 185
- 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
- 712
- Möbius Function
- 1
- Radical
- 895
- 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
- 98
- Smith Number
- yes
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
- achthundertfünfundneunzig· ordinal: achthundertfünfundneunzigste
- English
- eight hundred ninety-five· ordinal: eight hundred ninety-fifth
- Spanish
- ochocientos noventa y cinco· ordinal: 895º
- French
- huit cent quatre-vingt-quinze· ordinal: huit cent quatre-vingt-quinzième
- Italian
- ottocentonovantacinque· ordinal: 895º
- Latin
- octingenti nonaginta quinque· ordinal: 895.
- Portuguese
- oitocentos e noventa e cinco· ordinal: 895º
Appears in sequences
- Number of partitions into non-integral powers.at n=9A000160
- Number of twin prime pairs < square of n-th prime.at n=55A000885
- Number of plane partitions of n with at most two rows.at n=14A000990
- Numbers k such that 3^k, 3^(k+1) and 3^(k+2) have the same number of digits.at n=41A001682
- Primes multiplied by 5.at n=40A001750
- Woodall (or Riesel) numbers: n*2^n - 1.at n=6A003261
- Number of protruded partitions of n with largest part at most 4.at n=10A005405
- Minimal number of moves for the cyclic variant of the Towers of Hanoi for 3 pegs and n disks, with the final peg one step away.at n=7A005665
- Number of acyclic ethylene derivatives with n carbon atoms.at n=8A005959
- Number of paraffins.at n=12A006001
- Number of graphs with n nodes, n-1 edges and no isolated vertices.at n=9A006648
- Smith (or joke) numbers: composite numbers k such that sum of digits of k = sum of digits of prime factors of k (counted with multiplicity).at n=43A006753
- Number of non-Abelian metacyclic groups of order 2^n.at n=29A007982
- Coordination sequence T1 for Zeolite Code NAT.at n=20A008203
- Coordination sequence T1 for Zeolite Code VFI.at n=23A008245
- Coordination sequence T2 for Zeolite Code DFO.at n=23A009876
- a(n) = 2*a(n-2) + 1.at n=15A010737
- Sum along upward diagonal of Pascal triangle to center.at n=15A010752
- Number of parts in all partitions of n into distinct parts.at n=27A015723
- Place where n-th 1 occurs in A023125.at n=15A022787