Properties of the Number 39854

Thirty-Nine Thousand Eight Hundred Fifty-Four

Basics

Value: 39853 → 39854 → 39855

Parity: even

Prime: No

Previous Prime: 39847

Next Prime: 39857

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 19927

Divisors: 1, 2, 19927, 39854

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001101110101110

Octal: 115656

Duodecimal: 1B092

Hexadecimal: 9bae

Square: 1588341316

Square Root: 199.63466632827075

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

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010101. A260106

The Wiener index of the nanostar dendrimer defined pictorially as G[n] in the M. H. Khalifeh et al. reference. A227486

Indices of primes in sequence defined by A(0) = 49, A(n) = 10·A(n-1) - 61 for n > 0. A101722

Numbers k such that A144264(k) = A144264(k+1). A144359

Number of (n+2)X(2+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000101 or 00010101. A260100

Number of partitions satisfying cn(1,5) <= 1 and cn(4,5) <= 1. A39854