Properties of the Number 28407

Twenty-Eight Thousand Four Hundred Seven

Basics

Value: 28406 → 28407 → 28408

Parity: odd

Prime: No

Previous Prime: 28403

Next Prime: 28409

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 17 × 557

Divisors: 1, 3, 17, 51, 557, 1671, 9469, 28407

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110111011110111

Octal: 67367

Duodecimal: 14533

Hexadecimal: 6ef7

Square: 806957649

Square Root: 168.5437628629431

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

Integers of the form 8k + 7 that can be written as a sum of four distinct squares of the form m, m + 1, m + 3, m + 5, where m == 2 (mod 4). A243580

G.f. satisfies A(x) = 1 + x·A(x)*(1 + x⁵*A(x)³). A365733

The number of irreducible zero-sum subsets of {-n..n} that contain -n but not n. A390082

Number of partitions p of n such that the m(M(p)) is a part, where m = multiplicity, M = the maximum multiplicity of the parts of p. A240538

Representation degeneracies for Neveu-Schwarz strings. A5299

Numbers that are the product of 3 distinct primes a,b and c, such that a+b+c, a²+b²+c² and a³+b³+c³ are prime numbers. A176911

Number of equivalence classes of Boolean functions of n variables under action of LSD(n,2). A28407

Areas of primitive Pythagorean triangles which are palindromes. A101439

Numbers that are sums of 2,4,6,8 consecutive primes. A287900