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Properties of the Number 25287

Twenty-Five Thousand Two Hundred Eighty-Seven

Basics

Value: 25286 → 25287 → 25288

Parity: odd

Prime: No

Previous Prime: 25261

Next Prime: 25301

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 8429

Divisors: 1, 3, 8429, 25287

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001011000111

Octal: 61307

Duodecimal: 12773

Hexadecimal: 62c7

Square: 639432369

Square Root: 159.01886680516876

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

Aitken's array: triangle of numbers {a(n,k), n >= 0, 0 <= k <= n} read by rows, defined by a(0,0)=1, a(n,0) = a(n-1,n-1), a(n,k) = a(n,k-1) + a(n-1,k-1). A11971
Apply (1+Shift) to Bell numbers. A11968
T(n,k)=Number of n X k nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any diagonal or antidiagonal neighbor (colorings ignoring permutations of colors). A207981
Mirror image of the Bell triangle A011971, which is also called the Pierce triangle or Aitken's array. A123346
Sequence formed by reading rows of triangle defined in A011971. A11972
Number of partitions p of n such that (maximal multiplicity of the parts of p) >= (number of distinct parts of p). A240308
Number of nondecreasing integer sequences of length 7 with sum zero and sum of absolute values 2n. A158141
Number of n X 2 nonnegative integer arrays with new values 0 upwards introduced in row major order and no element equal to any diagonal or antidiagonal neighbor (colorings ignoring permutations of colors). A207978
Number of partitions of [n] having exactly one parity change within the partition. A363550
Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 53. A31731