Properties of the Number 12245

Twelve Thousand Two Hundred Forty-Five

Basics

Value: 12244 → 12245 → 12246

Parity: odd

Prime: No

Previous Prime: 12241

Next Prime: 12251

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 31 × 79

Divisors: 1, 5, 31, 79, 155, 395, 2449, 12245

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111111010101

Octal: 27725

Duodecimal: 7105

Hexadecimal: 2fd5

Square: 149940025

Square Root: 110.65712810298305

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

a(n) = (2·n+1) * (4·n-1). A33566

Numbers m such that 6m+1, 12m+1, 18m+1, 36m+1 and 72m+1 are all prime. A257035

Trajectory of 3 under map n->7n+1 if n odd, n->n/2 if n even. A37101

Least n-digit multiple of n such that the r-th digit is prime if r is a prime else it is composite. The location and value of the most significant digit is 1. 0 if no such number exists. A113572

Limiting values of A136406: a(n) = A136406(m,m-n) for any m >= 2n. A137504

Number of compositions of n into distinct parts where each part i is marked with a word of length i over a binary alphabet whose letters appear in alphabetical order and all letters occur at least once in the composition. A261853

Positive numbers k such that k and 2·k are anagrams in base 8 (written in base 8). A23073

Positive numbers k such that k and 4·k are anagrams in base 8 (written in base 8). A23075

Numbers k such that σ(k) = φ(k·bigomega(k)+1). A67876

Numbers k such that σ(k) = φ(k*ω(k)+1). A67879