Properties of the Number -30788

Thirty Thousand Seven Hundred Eighty-Eight

Basics

Value: -30789 → -30788 → -30787

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 43 × 179

Divisors: 1, 2, 4, 43, 86, 172, 179, 358, 716, 7697

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111100001000100

Octal: -74104

Duodecimal: -15998

Hexadecimal: -7844

Square: 947900944

Square Root: 175.46509624423885

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 k such that σ(k+2) = σ(k). A7373

Triangle read by rows: T(n,k) is the number of isomorphism classes of commutative semigroups of order n with k idempotents. A58116

First of two sequences bisecting the second differences of the partition numbers (see A053445). A160644

Number of partitions p of n such that the number of parts is not a part and max(p) - min(p) is not a part. A241385

a(n) = (9·n+1)*(9·n+8). A1534

a(n) = prime(n)*prime(n+1) - prime(n+1). A37167

Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A259003