Properties of the Number 61219

Sixty-One Thousand Two Hundred Nineteen

Basics

Value: 61218 → 61219 → 61220

Parity: odd

Prime: No

Previous Prime: 61211

Next Prime: 61223

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 29 × 2111

Divisors: 1, 29, 2111, 61219

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1110111100100011

Octal: 167443

Duodecimal: 2B517

Hexadecimal: ef23

Square: 3747765961

Square Root: 247.42473603097974

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

Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 111-110-111 pattern in any orientation. A146284

a(n) is the largest number which can be formed with no zeros, using least number of digits and having digit sum = n. A61219

Smallest prime that is the sum of a square and a positive cube in n different ways. A173795

Number of (n+1)X(4+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order. A231460