Properties of the Number -28879

Twenty-Eight Thousand Eight Hundred Seventy-Nine

Basics

Value: -28880 → -28879 → -28878

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 28879

Divisors: 1, 28879

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111000011001111

Octal: -70317

Duodecimal: -14867

Hexadecimal: -70cf

Square: 833996641

Square Root: 169.9382240698072

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

a(n) = 20·n² - 1. A158491

a(1)=2; a(n) for n>1 is the smallest prime number > a(n-1) such that the concatenation of all previous terms is also prime. A80155

Primes p such that p + 4, p + 16, p + 64, p + 256 and p + 1024 are all semiprimes. A241493

Primes with digit sum = 34. A106769

Smallest number that takes n steps to reach 0 under "k->min product of 2 numbers whose concatenation is k". A35933

Primes related to the nondecreasing subsequence of A053666. A69802

a(n) = 80·n² - 1. A158774

a(n) = min{k>0: the n-th convergent to e equals m/k! for some m}. A120355

Primes of the form 5n² - 1. A201783

Primes of the form (k³ - k² - k - 1)/2 for some integer k > 0. A268063