Properties of the Number 40345

Forty Thousand Three Hundred Forty-Five

Basics

Value: 40344 → 40345 → 40346

Parity: odd

Prime: No

Previous Prime: 40343

Next Prime: 40351

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 8069

Divisors: 1, 5, 8069, 40345

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001110110011001

Octal: 116631

Duodecimal: 1B421

Hexadecimal: 9d99

Square: 1627719025

Square Root: 200.8606482116395

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

Sums of nonconsecutive factorial numbers. A60112

a(n) = ∑_{k=0..floor(n/4)} (n-4·k)!. A358499

a(n) = 24·n² + 1. A158547

Largest GF2X-Matula number i which encodes a tree of n nodes, i.e., for which A091238(i) = n. A91240

Semiprimes (A001358) that are sums of distinct factorials. A115646

Number of non-abelian groups of order prime(n)⁶. A271811

Numbers k such that the continued fraction for sqrt(k) has period 73. A20412

Expansion of ∏_k>=1 1/(1 - x^k)^k²*(k+1²/4). A287090

Shifts left under transform T where Ta is a EXP-DCONV a. A38047

Continued fraction for sqrt(365). A40345