479
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
- 2
- Divisor Sum
- 480
- Proper Divisor Sum (Aliquot Sum)
- 1
- 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
- 478
- Möbius Function
- -1
- Radical
- 479
- Omega Function (Ω)
- 1
- Little Omega Function (ω)
- 1
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
- 53
- Smith Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- yes
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 92
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Names
- German
- vierhundertneunundsiebzig· ordinal: vierhundertneunundsiebzigste
- English
- four hundred seventy-nine· ordinal: four hundred seventy-ninth
- Spanish
- cuatrocientos setenta y nueve· ordinal: 479º
- French
- quatre cent soixante-dix-neuf· ordinal: quatre cent soixante-dix-neufième
- Italian
- quattrocentosettantanove· ordinal: 479º
- Latin
- quadringenti septuaginta novem· ordinal: 479.
- Portuguese
- quatrocentos e setenta e nove· ordinal: 479º
Appears in sequences
- a(n) is the least number m such that the n-th prime is the least quadratic nonresidue modulo m.at n=5A000229
- Number of permutations of [n] with exactly 2 increasing runs of length at least 2.at n=2A000363
- Numbers k such that sum of squares of k consecutive integers >= 1 is a square.at n=52A001032
- Primes == +-1 (mod 8).at n=43A001132
- Smallest prime p such that the product of q/(q-1) over the primes from prime(n) to p is greater than 2.at n=7A001275
- Cyclic numbers: 10 is a quadratic residue modulo p and class of mantissa is 2.at n=29A001914
- Primes p such that the congruence 2^x == 3 (mod p) is solvable.at n=53A001915
- Primes p such that the congruence 2^x = 5 (mod p) is solvable.at n=50A001916
- Erroneous version of A045535.at n=4A001984
- Prime determinants of forms with class number 2.at n=41A002052
- Primes of the form 4*k + 3.at n=46A002145
- Smallest prime == 7 (mod 8) where Q(sqrt(-p)) has class number 2n+1.at n=12A002146
- Smallest prime p of form p = 8k-1 such that first n primes (p_1=2, ..., p_n) are quadratic residues mod p.at n=4A002223
- Primitive roots that go with the primes in A029932.at n=23A002231
- Coefficients for numerical differentiation.at n=4A002701
- Self numbers or Colombian numbers (numbers that are not of the form m + sum of digits of m for any m).at n=50A003052
- Number of connected graphs, up to homeomorphism, that can be drawn in the plane using unit-length edges.at n=9A003055
- Primes p with a Fibonacci primitive root g, i.e., such that g^2 = g + 1 (mod p).at n=28A003147
- Number of nonequivalent dissections of an n-gon by nonintersecting diagonals up to rotation.at n=6A003455
- Primes congruent to {3, 5, 6} mod 7.at n=47A003625