Properties of the Number 1505

One Thousand Five Hundred Five

Basics

Value: 1504 → 1505 → 1506

Parity: odd

Prime: No

Previous Prime: 1499

Next Prime: 1511

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 5 × 7 × 43

Divisors: 1, 5, 7, 35, 43, 215, 301, 1505

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111100001

Octal: 2741

Duodecimal: A55

Hexadecimal: 5e1

Square: 2265025

Square Root: 38.79432948254165

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 integer partitions of n with distinct differences between successive parts. A325325

Partial sums of A299272. A299273

a(n) = n*(n+8). A28566

Augmentation of the triangular array A158405. See Comments. A193091

Numerator of 1/16 - 1/n². A61041

Powers of cube root of 23 rounded up. A18044

Cald's sequence: a(n+1) = a(n) - prime(n) if that value is positive and new, otherwise a(n) + prime(n) if new, otherwise 0; start with a(1)=1. A6509

Numbers that are the sum of 3 nonzero squares in exactly 10 ways. A25330

Triangle T(n,k) read by rows, giving number of bracelets (turnover necklaces) with n beads of k colors (n >= 1, 1 <= k <= n). A81720

Numbers where 5 outnumbers any other digit. A292455