776
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
- 4
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 1470
- Proper Divisor Sum (Aliquot Sum)
- 694
- 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
- 384
- Möbius Function
- 0
- Radical
- 194
- Omega Function (Ω)
- 4
- 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
- 121
- 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
- siebenhundertsechsundsiebzig· ordinal: siebenhundertsechsundsiebzigste
- English
- seven hundred seventy-six· ordinal: seven hundred seventy-sixth
- Spanish
- setecientos setenta y seis· ordinal: 776º
- French
- sept cent soixante-seize· ordinal: sept cent soixante-seizième
- Italian
- settecentosettantasei· ordinal: 776º
- Latin
- septingenti septuaginta sex· ordinal: 776.
- Portuguese
- setecentos e setenta e seis· ordinal: 776º
Appears in sequences
- Number of positive integers <= 2^n of form x^2 + 10 y^2.at n=12A000024
- Let A(n) = #{(i,j,k): i^2 + j^2 + k^2 <= n}, V(n) = (4/3)Pi*n^(3/2), P(n) = A(n) - V(n); A000092 gives values of n where |P(n)| sets a new record; sequence gives (nearest integer to, I believe) P(A000092(n)).at n=30A000223
- Numbers k such that (k^2 + k + 1)/13 is prime.at n=36A002642
- Numbers that are the sum of 11 positive 8th powers.at n=3A003389
- Numbers that are the sum of at most 11 nonzero 8th powers.at n=41A004884
- Numbers that are the sum of at most 12 nonzero 8th powers.at n=44A004885
- Related to representations as sums of Fibonacci numbers.at n=45A006132
- Number of factorization patterns of polynomials of degree n over F_5.at n=12A006170
- Numbers k such that k^16 + 1 is prime.at n=35A006313
- Number of zero-entropy permutations of length n.at n=7A006948
- Numbers k such that phi(x) = k has exactly 3 solutions.at n=32A007367
- Moebius transform of triangular numbers.at n=47A007438
- Coordination sequence T2 for Zeolite Code AFT.at n=21A008027
- Coordination sequence T1 for Zeolite Code AFY.at n=23A008029
- Coordination sequence T2 for Zeolite Code BIK.at n=17A008048
- Coordination sequence T1 for Zeolite Code BOG.at n=20A008049
- Coordination sequence T3 for Zeolite Code MOR.at n=18A008184
- Coordination sequence T7 for Zeolite Code MTT.at n=17A008195
- Coordination sequence T1 for Zeolite Code YUG.at n=18A008247
- Molien series for cyclic group of order 5.at n=15A008646