Properties of the Number 30983

Thirty Thousand Nine Hundred Eighty-Three

Basics

Value: 30982 → 30983 → 30984

Parity: odd

Prime: Yes

Previous Prime: 30977

Next Prime: 31013

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 30983

Divisors: 1, 30983

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111100100000111

Octal: 74407

Duodecimal: 15B1B

Hexadecimal: 7907

Square: 959946289

Square Root: 176.01988524027618

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Permutation of natural numbers: a(0)=0, a(1)=1, a(2n)=A005228(1+(a(n))), a(2n+1)=A030124(a(n)). A232752

Number of equicolorable (unrooted) trees on 2n nodes. A119856

Numbers whose set of base-13 digits is {1,4}. A32825

Smallest primes p = p(k) with (p(k)+p(k+1)+p(k+2))/15 an integer. A168556

Primes having only {0, 3, 8, 9} as digits. A386069

Integers k such that 28*φ(29·197³*k) is not a totient number where φ is the totient function. A361396

Integers k such that A005245(m·k) < A005245(k) for some m. A380464

Number of rooted noncrossing trees with n nodes such that root has degree 1 and the child of the root has degree at least 2. A30983

Primes p such that the polynomial k⁴ + k³ + k² + k + p yields primes for k = 0..8, but not for k = 9. A253915

Continued fraction expansion of a constant r such that the odd-indexed bisection equals the continued fraction of 2·r, with an even-indexed bisection of all 2's. A322728