Properties of the Number 15213

Fifteen Thousand Two Hundred Thirteen

Basics

Value: 15212 → 15213 → 15214

Parity: odd

Prime: No

Previous Prime: 15199

Next Prime: 15217

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 11 × 461

Divisors: 1, 3, 11, 33, 461, 1383, 5071, 15213

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101101101101

Octal: 35555

Duodecimal: 8979

Hexadecimal: 3b6d

Square: 231435369

Square Root: 123.34099075327715

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 involutions of length 2n which are invariant under the reverse-complement map and have no decreasing subsequences of length 6. A145847

a(n) = n*(14·n - 1). A195024

Pseudo-random numbers: Davenport's generator for 32-bit integers. A84277

Number of rooted planar maps with 4 faces and n vertices and no isthmuses. A6468

Decimal representation of the middle column of the "Rule 109" elementary cellular automaton starting with a single ON (black) cell. A267210

Number of n X 3 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. A281464

a(0) = 1; a(n) = (11·n² - 9·n + 4)/2 for n>0. A389625

Numbers having four 5's in base 8. A43444

Inverse of 1204th cyclotomic polynomial. A15213