Properties of the Number -7345

Three Hundred Forty-Five

Basics

Value: -7346 → -7345 → -7344

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 13 × 113

Divisors: 1, 5, 13, 65, 113, 565, 1469, 7345

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1110010110001

Octal: -16261

Duodecimal: -4301

Hexadecimal: -1cb1

Square: 53949025

Square Root: 85.70297544426332

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

Expansion of e.g.f. exp(2·x) / (1 + x·exp(x)). A368271

Generalized 23-gonal (or icositrigonal) numbers: m*(21·m - 19)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303303

Numbers m that are the hypotenuse of exactly 13 distinct integer-sided right triangles, i.e., m² can be written as a sum of two squares in 13 ways. A97102

Regular triangle where T(n,k) is the number of pairs of set partitions of {1,...,n} with meet of length k. A318391

Numbers k such that there are exactly 8 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 8. A80386

Total number of parts coprime to n in the partitions of n into 5 parts. A363323

Concentric 24-gonal numbers. A195158

Expansion of ∑_k>0 x^4·k/(1+x^k)⁴. A363616

Numbers that are the sum of 2 nonzero squares in exactly 4 ways. A25287

Numbers n that are the product of three distinct odd primes and x² + y² = n has integer solutions. A264498