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Properties of the Number 11531

Eleven Thousand Five Hundred Thirty-One

Basics

Value: 11530 → 11531 → 11532

Parity: odd

Prime: No

Previous Prime: 11527

Next Prime: 11549

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 13 × 887

Divisors: 1, 13, 887, 11531

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110100001011

Octal: 26413

Duodecimal: 680B

Hexadecimal: 2d0b

Square: 132963961

Square Root: 107.38249391777042

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 planar partitions of n with all part sizes distinct. A117433
Indices k such that sk(4) is a (probable) prime, where sk(4) = 4·sk-1(4) - sk-2(4), k >= 2, s0(4) = 1, s1(4) = 5. A299100
a(n) = 12·n2 - 1. A158463
Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 286", based on the 5-celled von Neumann neighborhood. A280564
Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)*b(n-1)*b(n), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences. A296278
Principal diagonal of the convolution array A213847. A213848
Numbers k such that A109812(k) AND A109812(k+2) = 0 (where AND denotes the bitwise AND operator). A352773
Expansion of e.g.f.: exp(arcsin(x)*exp(x)). A12316
Times in hours, minutes and seconds (to the nearest second) at which the hour and minute hands of an analog clock, if interchanged, continue to indicate some other albeit accurate times, over a complete 12-hour sweep for the slower hand. Leading zeros omitted. A121577
Numerators of sequence defined by f(0)=1, f(1)=5/4; f(n) = ( (6·n-1)*f(n-1) - (2·n-1)*f(n-2) )/(4n). A126963