Properties of the Number -20339

Twenty Thousand Three Hundred Thirty-Nine

Basics

Value: -20340 → -20339 → -20338

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 11 × 43 ²

Divisors: 1, 11, 43, 473, 1849, 20339

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111101110011

Octal: -47563

Duodecimal: -B92B

Hexadecimal: -4f73

Square: 413674921

Square Root: 142.6148659852822

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

T(n,k) = 4·A046802(n,k) - 3·A007318(n,k), triangle read by rows (0 <= k <= n). A168289

Numbers p²*q, p > q odd primes such that q divides p+1. A350245

The sum of the numbers on straight lines of incrementing length n when drawn over numbers of the square spiral, where each line contains numbers which sum to the minimum possible value, and each number on the spiral can only be in one line. If two or more lines exist with the same sum the one containing the smallest number is chosen. A340974

Composite numbers and 1 which yield a prime whenever a 3 is inserted anywhere in them (including at the beginning or end). A216166

Main diagonal of number square A081206. A81207

(k²)-th k-smooth number for k = prime(n). A133581

Number of length n 1..(2+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal. A254212

Numbers k such that σ(k) = ψ(k) + 2 * τ(k). A387962

Number of partitions of n into parts not of the form 23k, 23k+10 or 23k-10. Also number of partitions with at most 9 parts of size 1 and differences between parts at distance 10 are greater than 1. A35998

Numerator of 1 + 1/2 + 2/3 + 3/4 + ... + (n-1)/n. A61483