Properties of the Number 826

Eight Hundred Twenty-Six

Basics

Value: 825 → 826 → 827

Parity: even

Prime: No

Previous Prime: 823

Next Prime: 827

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 59

Divisors: 1, 2, 7, 14, 59, 118, 413, 826

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100111010

Octal: 1472

Duodecimal: 58A

Hexadecimal: 33a

Square: 682276

Square Root: 28.74021572639983

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 partitions of n into parts each of which is used a different number of times. A98859

Y-toothpick sequence (see Comments lines for definition). A160120

Generalized 10-gonal numbers: m*(4·m - 3) for m = 0, +- 1, +- 2, +- 3, ... A74377

Second 10-gonal (or decagonal) numbers: n*(4·n+3). A33954

Numbers that are the sum of 7 positive 5th powers. A3352

Sum of all aliquot divisors of all positive integers <= n. A153485

The main column of a version of the square spiral. A156859

Convolution of A000203 with itself. A385

|First digit - second digit + third digit - fourth digit ...| = 12. A60980

Generalized Stirling number triangle of first kind read by rows: T(n, k) = [x^k] ∏_m=1..n (x - m - r), with r = 1. A49444