Properties of the Number -122122

One Hundred Twenty-Two Thousand One Hundred Twenty-Two

Basics

Value: -122123 → -122122 → -122121

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 × 7 × 11 × 13 × 61

Divisors: 1, 2, 7, 11, 13, 14, 22, 26, 61, 77

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11101110100001010

Octal: -356412

Duodecimal: -5A80A

Hexadecimal: -1dd0a

Square: 14913782884

Square Root: 349.45958278461904

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

Consider the Post tag system described in A284116 (but adapted to the alphabet {1,2}) ; sequence lists the words that terminate in the empty word. A289675

Non-primitive words on {1,2,3}. A239018

Take n-th string over {1,2} in lexicographic order and apply the Watanabe tag system {00, 1011} described in A291067 (but adapted to the alphabet {1,2}) just once. A291072

List of imprimitive words over the alphabet {1,2}. A213972

Reversed shortest (x+1,2x)-code of n. A233137

Numbers such that each decimal digit d (for all d in the range 1 <= d <= 9) occurs only in runs of length exactly d. A140057

Number of ascent sequences of length n with exactly nine flat steps. A242162

a(1) = 1; a(2) = 2; for n > 2, a(n) is the least number > a(n-1) whose decimal representation is uniquely the concatenation of the decimal representations of two distinct earlier terms. A336528

Sorted list of strings that can be obtained by starting with 12 and repeatedly doubling any substring in place. A130838

Number of set partitions of [n] into exactly six blocks where sizes of distinct blocks are coprime. A280884