Properties of the Number 7127

Seven Thousand One Hundred Twenty-Seven

Basics

Value: 7126 → 7127 → 7128

Parity: odd

Prime: Yes

Previous Prime: 7121

Next Prime: 7129

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 7127

Divisors: 1, 7127

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1101111010111

Octal: 15727

Duodecimal: 415B

Hexadecimal: 1bd7

Square: 50794129

Square Root: 84.42156122697565

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

Euclid-Mullin sequence: a(1) = 2, a(n+1) is smallest prime factor of 1 + ∏_k=1..n a(k). A945

Primes of the form 36·k² - 810·k + 2753, listed in order of increasing parameter k >= 0. A50268

Primes with first digit 7. A45713

Numerators of the convergents of the continued fraction for L(3, chi3), where L(s, chi3) is the Dirichlet L-function for the non-principal character modulo 3. A129658

Primes p whose period of reciprocal equals (p-1)/7. A56212

Lesser of twin primes p1 and p2 such that 2·p1+p2 is a prime number. A174913

Primes having only {1, 2, 7} as digits. A260889

Canyon primes. A134971

Father primes of order 5. A136074

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..1 introduced in row major order. A204867