Properties of the Number -2445

Four Hundred Forty-Five

Basics

Value: -2446 → -2445 → -2444

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 163

Divisors: 1, 3, 5, 15, 163, 489, 815, 2445

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100110001101

Octal: -4615

Duodecimal: -14B9

Hexadecimal: -98d

Square: 5978025

Square Root: 49.44694126030446

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 strict partitions of 2n that include a partition of n. A237258

Number of partitions of n whose reciprocal sum is an integer. A58360

Numbers that are the sum of 9 positive 6th powers. A3365

Numbers that are the sum of 5 positive 7th powers. A3372

Triangle read by rows: T(n,k) = number of connected multigraphs with n >= 0 edges and 1 <= k <= n+1 vertices, with no loops allowed. A191646

Number of non-biquanimous subsets of {1..n}. Sets with no subset having the same sum as the complement. A371792

Numbers k such that φ(k) is a perfect biquadrate. A78164

Numbers k such that 11·k+1 is a square. A219257

Number of quanimous strict integer partitions of n, meaning there is more than one set partition with all equal block-sums. A371737

Number of compositions (ordered partitions) of n into tetrahedral (or triangular pyramidal) numbers (A000292). A282582