Properties of the Number 25816

Twenty-Five Thousand Eight Hundred Sixteen

Basics

Value: 25815 → 25816 → 25817

Parity: even

Prime: No

Previous Prime: 25801

Next Prime: 25819

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 7 × 461

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 461, 922

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110010011011000

Octal: 62330

Duodecimal: 12B34

Hexadecimal: 64d8

Square: 666465856

Square Root: 160.67358214715946

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

Principal diagonal of the convolution array A213778. A213779

Total sum of parts of multiplicity 9 in all partitions of n. A222737

Number of 2Xn 0..2 arrays with exactly floor(2Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222489

a(n) = A253086(2ⁿ-1). A253087

Numbers k such that the sum of iterations of the alternating sum of divisors function A071324 starting from k is equal to 2·k. A333263

"Autotomy numbers" that have exactly 10 distinct decimal digits. Subtracting their last digit from the remaining part produces a shorter autotomy number (still with no duplicate digit). This process is iterated until the remaining part has only one digit (details in the Example section). A308377

Expansion of 1/((1-x²)*(1-x⁷)*(1-x⁸)). A25816