Properties of the Number 122

One Hundred Twenty-Two

Basics

Value: 121 → 122 → 123

Parity: even

Prime: No

Previous Prime: 113

Next Prime: 127

Digit Sum: 5

Digital Root: 5

Palindrome: No

Factorization: 2 × 61

Divisors: 1, 2, 61, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111010

Octal: 172

Duodecimal: A2

Hexadecimal: 7a

Square: 14884

Square Root: 11.045361017187261

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

Semiprimes (or biprimes): products of two primes. A1358

Expansion of ∏_{m >= 1} (1 + x^m); number of partitions of n into distinct parts; number of partitions of n into odd parts. A9

Squarefree semiprimes: Numbers that are the product of two distinct primes. A6881

a(n) = n² + 1. A2522

a(n) = sigma₂(n): sum of squares of divisors of n. A1157

Numbers in base 3. A7089

Numbers in base 5. A7091

Numbers in base 4. A7090

Odious numbers: numbers with an odd number of 1's in their binary expansion. A69

Numbers that are the sum of 2 squares. A1481

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