283
domain: N
Properties
Digital Properties
- Digit Count
- 3
- Digit Sum
- 13
- Digital Root
- 4
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 2
- Divisor Sum
- 284
- 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
- 282
- Möbius Function
- -1
- Radical
- 283
- 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
- 60
- Smith Number
- no
Primality
- Prime
- yes
- Composite Number
- no
- Semiprime
- no
- Squarefree Number
- yes
- Prime Power
- yes
- Prime Factorization
- no
- Twin Prime
- yes
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Prime Index
- 61
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Names
- German
- zweihundertdreiundachtzig· ordinal: zweihundertdreiundachtzigste
- English
- two hundred eighty-three· ordinal: two hundred eighty-third
- Spanish
- doscientos ochenta y tres· ordinal: 283º
- French
- deux cent quatre-vingt-trois· ordinal: deux cent quatre-vingt-troisième
- Italian
- duecentoottantatre· ordinal: 283º
- Latin
- ducenti octoginta tres· ordinal: 283.
- Portuguese
- duzentos e oitenta e três· ordinal: 283º
Appears in sequences
- Primes that divide at least one term in every Fibonacci sequence.at n=13A000057
- Numbers that are not the sum of 4 tetrahedral numbers.at n=21A000797
- Number of primes < prime(n)^2.at n=13A000879
- Primes p of the form 3k+1 such that -sqrt(p) < sum_{x=1..p} cos(2*Pi*x^3/p) < sqrt(p).at n=8A000922
- Irregular primes: primes p such that at least one of the numerators of the Bernoulli numbers B_2, B_4, ..., B_{p-3} (A000367) is divisible by p.at n=12A000928
- Lucky numbers.at n=52A000959
- Union of all numbers {p, q} where p and q are both primes or powers of primes and q = p+2.at n=53A001092
- Twin primes.at n=36A001097
- A continued fraction.at n=7A001112
- Primes with 3 as smallest primitive root.at n=14A001123
- Primes p such that the multiplicative order of 2 modulo p is (p-1)/3.at n=5A001133
- Numbers k such that 3^k, 3^(k+1) and 3^(k+2) have the same number of digits.at n=13A001682
- a(1)=2, a(2)=3; for n >= 3, a(n) is smallest number that is uniquely of the form a(j) + a(k) with 1 <= j < k < n.at n=53A001857
- Cyclic numbers: 10 is a quadratic residue modulo p and class of mantissa is 2.at n=16A001914
- Prime determinants of forms with class number 2.at n=29A002052
- a(n) = least value of m for which Liouville's function A002819(m) = -n.at n=17A002053
- Number of partitions of n with exactly two part sizes.at n=44A002133
- Primes of the form 4*k + 3.at n=31A002145
- Smallest primitive factor of 2^(2n+1) + 1.at n=23A002185
- Primes of the form 6m + 1.at n=27A002476