Properties of the Number -39685

Thirty-Nine Thousand Six Hundred Eighty-Five

Basics

Value: -39686 → -39685 → -39684

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 5 × 7937

Divisors: 1, 5, 7937, 39685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -1001101100000101

Octal: -115405

Duodecimal: -1AB71

Hexadecimal: -9b05

Square: 1574899225

Square Root: 199.21094347449892

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

n+p(n)+p(p(n)) is a square, where p(n) is the n-th prime. A116011

Number of nX2 0..3 arrays with no more than floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order. A222473

a(n) is the least number that reaches 1 after n iterations of the infinitary totient function A064380. A362025