695
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
- 2
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 840
- Proper Divisor Sum (Aliquot Sum)
- 145
- 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
- 552
- Möbius Function
- 1
- Radical
- 695
- 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
- 126
- 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
- sechshundertfünfundneunzig· ordinal: sechshundertfünfundneunzigste
- English
- six hundred ninety-five· ordinal: six hundred ninety-fifth
- Spanish
- seiscientos noventa y cinco· ordinal: 695º
- French
- six cent quatre-vingt-quinze· ordinal: six cent quatre-vingt-quinzième
- Italian
- seicentonovantacinque· ordinal: 695º
- Latin
- sescenti nonaginta quinque· ordinal: 695.
- Portuguese
- seiscentos e noventa e cinco· ordinal: 695º
Appears in sequences
- "First factor" (or relative class number) h- for cyclotomic field Q( exp(2 Pi / prime(n)) ).at n=14A000927
- Primes multiplied by 5.at n=33A001750
- Maximal number of pieces obtained by slicing a torus (or a bagel) with n cuts: (n^3 + 3*n^2 + 8*n)/6 (n > 0).at n=15A003600
- 7th-order maximal independent sets in cycle graph.at n=43A007389
- a(n) is the largest odd number k such that 9, 11, ..., k are sums of 3 of first n odd primes.at n=49A007962
- Coordination sequence T1 for Zeolite Code AFR.at n=20A008019
- Coordination sequence T5 for Zeolite Code MTT.at n=16A008193
- Molien series for A_11.at n=21A008634
- Number of partitions of n into at most 11 parts.at n=21A008640
- If x and y are terms, so is x*y + 9.at n=9A009350
- Coordination sequence T2 for Zeolite Code -CHI.at n=17A009847
- Coordination sequence T1 for Zeolite Code RSN.at n=17A009885
- sech(arcsin(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-23/4!*x^4-20/5!*x^5...at n=6A012327
- a(n) = -1 + Sum_{i=1..n} phi(i).at n=46A015614
- Number of ordered 5-tuples of integers from [ 1,n ] with no common factors among pairs.at n=17A015663
- Numbers k such that phi(k) | sigma_11(k).at n=32A015769
- Nearest integer to Gamma(n + 2/5)/Gamma(2/5).at n=7A020039
- Ceiling of Gamma(n+2/5)/Gamma(2/5).at n=7A020129
- Numbers k such that the continued fraction for sqrt(k) has period 8.at n=50A020348
- Numbers that are not the sum of 2 squares and a nonnegative cube.at n=47A022552