Properties of the Number 49987

Forty-Nine Thousand Nine Hundred Eighty-Seven

Basics

Value: 49986 → 49987 → 49988

Parity: odd

Prime: No

Previous Prime: 49957

Next Prime: 49991

Digit Sum: 37

Digital Root: 1

Palindrome: No

Factorization: 7 × 37 × 193

Divisors: 1, 7, 37, 193, 259, 1351, 7141, 49987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100001101000011

Octal: 141503

Duodecimal: 24B17

Hexadecimal: c343

Square: 2498700169

Square Root: 223.57772697654835

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

Fifth subdiagonal in array of n-gonal numbers A081422. A81436

Number of ordered triples (a, b, c) with gcd(a, b, c) = 1 and 1 <= {a, b, c} <= n. A71778

Numbers that are the sum of seven fourth powers in exactly nine ways. A345831

Indices of records in A245203 (= least k>=0 such that 4n+3 is the mean of primes 4(n-k)+3 and 4(n+k)+3). A245205

A129957(n) - n*(n-1)/2. A129959

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 105", based on the 5-celled von Neumann neighborhood. A270162

Number of Q graphs with 2·n vertices rooted at an internal edge. A294724

a(n) is the number of arithmetic progressions of 4 or more positive integers, strictly increasing with sum <= n. A49987