Properties of the Number 38239

Thirty-Eight Thousand Two Hundred Thirty-Nine

Basics

Value: 38238 → 38239 → 38240

Parity: odd

Prime: Yes

Previous Prime: 38237

Next Prime: 38261

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 38239

Divisors: 1, 38239

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001010101011111

Octal: 112537

Duodecimal: 1A167

Hexadecimal: 955f

Square: 1462221121

Square Root: 195.5479480843509

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

Numbers k such that the concatenation of k with k+5 gives a square. A115428

Numerators of upper primes-only best approximates (POBAs) to the golden ratio, φ (A001622); see Comments. A265798

Consider the Diophantine equation x³ + y³ = z³ - 1 (0 < x < y < z) or 'Fermat near misses'. Arrange solutions by increasing values of z. Sequence gives values of z. A50787

Numbers k such that k concatenated with k-4 gives the product of two numbers which differ by 6. A116131

The number of vertices inside a cross with width 3 and height n (see Comments in A331455 for definition) formed by the straight line segments mutually connecting all vertices and all points. A330850

Primes that are the difference of two Lucas numbers; primes in A113191. A113192

Fibonacci sequence beginning 11, 8. A206420

Primes of form prime(1) + ... + prime(k) + 1. A53845

Primes of the form 6n² - 2n - 1. A99007

T(n,m)=Number of (n+1)X5 0..m arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors. A189174