Properties of the Number -28239

Twenty-Eight Thousand Two Hundred Thirty-Nine

Basics

Value: -28240 → -28239 → -28238

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 9413

Divisors: 1, 3, 9413, 28239

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110111001001111

Octal: -67117

Duodecimal: -14413

Hexadecimal: -6e4f

Square: 797441121

Square Root: 168.04463692721646

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 n such that 3ⁿ + 2^n-1 is prime. A82103

Number of partitions of n such that the number of parts is not divisible by the greatest part. A200727

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1) + n, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences. A294546

For 1<=x<=n, 1<=y<=n, with gcd(x,y)=1, write 1 = gcd(x,y) = u·x+v·y with u,v minimal; a(n) = sum of the values of u²+v². A345431

Square root of π(A064523(n)). A115835

Number of terms of A072873 less than or equal to 10ⁿ. A267757