Properties of the Number 39790

Thirty-Nine Thousand Seven Hundred Ninety

Basics

Value: 39789 → 39790 → 39791

Parity: even

Prime: No

Previous Prime: 39779

Next Prime: 39791

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 23 × 173

Divisors: 1, 2, 5, 10, 23, 46, 115, 173, 230, 346

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1001101101101110

Octal: 115556

Duodecimal: 1B03A

Hexadecimal: 9b6e

Square: 1583244100

Square Root: 199.47430912275394

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

INVERT transform of φ(n), A000010. A159929

Expansion of (1/x) * Series_Reversion( x * (1-x)² / (1+x²) ). A369208

Numbers k such that in a rotated-square spiral with positive integers (A215468) among k's eight nearest neighbors five or more are primes. A215471

Numbers k such that if x = σ(k) + τ(k) - k then k = σ(x) + τ(x) - x. A238226

The number of edges on a vesica piscis formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts. A342152

Greater members of dihedral amicable pairs: numbers (m, k) such that t(m) = t(k) = m + k, where t(k) = σ(k) + d(k). A322254

Number of 6-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-bishop's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions. A187610

Number of permutations of length n which avoid the patterns 1234, 2413, 3241. A116747

Numbers m such that ψ(x) = φ(m) has a solution while σ(y) = φ(m) has none. A291524

Number of permutations of [n] that avoid the shuffle pattern s-k-t, where s = 123 and t = 123. A324137