Properties of the Number -123321

One Hundred Twenty-Three Thousand Three Hundred Twenty-One

Basics

Value: -123322 → -123321 → -123320

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 12

Digital Root: 3

Palindrome: Yes

Factorization: 3 × 11 × 37 × 101

Divisors: 1, 3, 11, 33, 37, 101, 111, 303, 407, 1111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110000110111001

Octal: -360671

Duodecimal: -5B449

Hexadecimal: -1e1b9

Square: 15208069041

Square Root: 351.1708985664957

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

Concatenation of the numbers from 1 to n with numbers from n down to 1. A259937

Pseudoprimes to base 6, written in base 6. A262103

Sum of multinomials M(n-k; p₁-1, ..., p_k-1), where p = (p₁, ..., p_k) ranges over all partitions of n into distinct parts (k is a partition length). A326493

Concatenation of sequence (1, 2, ..., floor((n-1)/2), floor(n/2), floor(n/2)-1, ..., 1) for n >= 1. A7907

Numbers which are products of repunits. A308365

Numbers that can be written as a product of distinct repunits. A334131

Palindromes formed from the concatenation of n, sum of n and R(n), and R(n) with its leading zeros; or 0 if no such palindrome exists. R(k) is the digit reversal of k. A84998

Numbers k that are divisors of the number formed by concatenating (k-1), k and (k+1), in that order. A88877

Multiplication of pair of contiguous repunits, i.e., (0·1, 1·11, 11·111, 111·1111, 1111·11111, ...). A274766

All possible products in increasing order of two distinct members of the unary sequence 1, 11, 111, 1111, 11111, ...given by A000042. A77488