Properties of the Number 8123

Eight Thousand One Hundred Twenty-Three

Basics

Value: 8122 → 8123 → 8124

Parity: odd

Prime: Yes

Previous Prime: 8117

Next Prime: 8147

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 8123

Divisors: 1, 8123

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111110111011

Octal: 17673

Duodecimal: 484B

Hexadecimal: 1fbb

Square: 65983129

Square Root: 90.12768719988325

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

Primes congruent to 1 mod 31. A142005

Primes with first digit 8. A45714

Class 5+ primes (for definition see A005105). A81633

a(n) is the smallest prime q such that (r-q)/(q-p) = n, where p<q<r are consecutive primes (or 0 if no such prime exists). A179210

Primes that can be written as the sum of 13 consecutive primes. A127341

Primes p such that q-p = 24, where q is the next prime after p. A98974

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one or two distinct values, and new values 0..3 introduced in row major order. A209848

Discriminants of imaginary quadratic fields with class number 21 (negated). A46018

Expansion of ∏_k>=1 1/((1 - x^2·k)*(1 - x^2·k-1)³). A298311

Column 1 of triangle A113983, also a(n) = [A113983²](n-1,0) + 1. A113984