Properties of the Number 39649

Thirty-Nine Thousand Six Hundred Forty-Nine

Basics

Value: 39648 → 39649 → 39650

Parity: odd

Prime: No

Previous Prime: 39631

Next Prime: 39659

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 31 × 1279

Divisors: 1, 31, 1279, 39649

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001101011100001

Octal: 115341

Duodecimal: 1AB41

Hexadecimal: 9ae1

Square: 1572043201

Square Root: 199.12056649176148

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

Number of canonical 3-polytopes of size n. A319959

a(n)=the sum of the (1,2)- and (1,3)-entries and twice the (1,4)-entry of the matrix Pⁿ + Tⁿ, where the 4 X 4 matrices P and T are defined by P=[0,1,0,0;0,0,1,0;0,0,0,1;1,0,0,0] and T=[0,1,0,0;0,0,1,0;0,0,0,1;1,1,1,1]. A109525

a(n) = φ(n)+1. A39649