Properties of the Number 26490

Twenty-Six Thousand Four Hundred Ninety

Basics

Value: 26489 → 26490 → 26491

Parity: even

Prime: No

Previous Prime: 26489

Next Prime: 26497

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 883

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 883, 1766

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110011101111010

Octal: 63572

Duodecimal: 133B6

Hexadecimal: 677a

Square: 701720100

Square Root: 162.75748830699004

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 different fixed (possibly) disconnected n-ominoes bounded (not necessarily tightly) by an n·n square. A162676

a(n) = prime(n) * prime(n²) - prime(n³). A291541

Number of ways to write n as an ordered sum of 10 nonzero tetrahedral numbers. A341809

Expansion of (1/x) * Series_Reversion( x * (1 - x - x/(1 - x)²) ). A378466

Number of different fixed (possibly) disconnected pentominoes bounded (not necessarily tightly) by an n·n square. A162675

Number of partitions of n that are separable by the least part; see Comments. A239515

Maximal coefficient of ∏_j=1..n (1 - x^prime(j)). A350514

Expansion of ∏_{m >= 1} (1-m·q^m)¹². A22672

Starting positions of strings of three 9's in the decimal expansion of π. A83642

Number of base 18 circular n-digit numbers with adjacent digits differing by 2 or less. A124935