Properties of the Number 38690

Thirty-Eight Thousand Six Hundred Ninety

Basics

Value: 38689 → 38690 → 38691

Parity: even

Prime: No

Previous Prime: 38677

Next Prime: 38693

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 53 × 73

Divisors: 1, 2, 5, 10, 53, 73, 106, 146, 265, 365

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001011100100010

Octal: 113442

Duodecimal: 1A482

Hexadecimal: 9722

Square: 1496916100

Square Root: 196.69773765857096

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 5·R_k + 4 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A99418

Generalized Catalan Numbers x³*A(x)² -(1-x+x³+x⁴)*A(x) + 1 =0. A23433

a(n) = (n² + 1) * (2·n - 1). A290631

a(n)² is smallest square containing the string 'n'. A38690

Triangle read by rows: T(n, k) is the number of partitions of a 2-colored set of n objects into at most k parts where 0 <= k <= n, and each part is one of 2 kinds. A383352