Properties of the Number 30998

Thirty Thousand Nine Hundred Ninety-Eight

Basics

Value: 30997 → 30998 → 30999

Parity: even

Prime: No

Previous Prime: 30983

Next Prime: 31013

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 11 × 1409

Divisors: 1, 2, 11, 22, 1409, 2818, 15499, 30998

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111100100010110

Octal: 74426

Duodecimal: 15B32

Hexadecimal: 7916

Square: 960876004

Square Root: 176.06248890663792

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

a(n) = 256·n² + 2·n. A158230

a(n) = 484·n² + 22. A158629

G.f. = b(2)*b(6)/(x⁶-x⁴+x²-2·x+1), where b(k) = (1-x^k)/(1-x). A266336

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 16. A31694

a(n) = A077704(n+1)/A077704(n). A77705

Number of lower triangles of a 3 X 3 0..n array with each element differing from all of its diagonal, vertical, antidiagonal and horizontal neighbors by two or less. A195249

Total sum of parts which are squares in all partitions of n. A342228

Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,2}. A79966

Write n in base 7 and juxtapose. A30998

Number of successive odd numbers that are not twin primes and number of successive twin primes, interleaved. A256262