Properties of the Number 5905

Five Thousand Nine Hundred Five

Basics

Value: 5904 → 5905 → 5906

Parity: odd

Prime: No

Previous Prime: 5903

Next Prime: 5923

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 1181

Divisors: 1, 5, 1181, 5905

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1011100010001

Octal: 13421

Duodecimal: 3501

Hexadecimal: 1711

Square: 34869025

Square Root: 76.84399781375251

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 ordered triples (a, b, c) with gcd(a, b, c) = 1 and 1 <= {a, b, c} <= n. A71778

Numbers k such that k³ divides 9^k² + 1. A128682

a(n) = n⁴ - n³ + n² - n + 1. A60884

Second numbers F = a(n) of two non-consecutive numbers (E, F) different from (C, D) = (A352222(n), A352223(n)), such that the sums of their cubes are equal to centered cube numbers and to at least one other sum of two cubes, i.e. A = B³ + (B+1)³ = C³ + D³ = E³ + F³. A352225

Numbers that are not the sum + product of any set of positive integers > 1. Zeros of A379679. A379680

Triangle of q-binomial coefficients for q=-9. A15121

a(n) = sigma₄(n²)/sigma₂(n²). A84218

Numbers k > 1 such that, in base 6, k and k² contain the same digits in the same proportion. A61660

Numbers k such that k | 9^k + 1. A15957

Numbers n such that n² contains exactly 8 different digits. A54036