Properties of the Number -133042

One Hundred Thirty-Three Thousand Forty-Two

Basics

Value: -133043 → -133042 → -133041

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 7 × 13 × 17 × 43

Divisors: 1, 2, 7, 13, 14, 17, 26, 34, 43, 86

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100000011110110010

Octal: -403662

Duodecimal: -64BAA

Hexadecimal: -207b2

Square: 17700173764

Square Root: 364.7492289231055

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 m with abundance 28: σ(m) - 2·m = 28. A392383

Self-convolution of A004148 (the RNA secondary structure numbers) with itself. A89735

Primitive nondeficient numbers satisfying a stronger condition that compares abundancy with related numbers as detailed in the comments. A352739

Abundant numbers whose abundance is a perfect number. A301859

Subsequence of A071395. The extra constraint is m is not a term if m·q/p is abundant where prime p∣m and q is the least prime larger than p. A333967

a(n) is the least number k such that there is a set of n proper divisors of k whose sum is k, and no set of fewer than n proper divisors of k whose sum is k. A389712

Number of (n+2)X(1+2) 0..3 arrays with every 3X3 subblock row and column sum equal to 0 1 3 6 or 7 and every 3X3 diagonal and antidiagonal sum not equal to 0 1 3 6 or 7. A252185

Primitive unitary abundant numbers k (A302573) whose unitary abundancy index usigma(k)/k has a record low value. A362054