Properties of the Number 8457

Eight Thousand Four Hundred Fifty-Seven

Basics

Value: 8456 → 8457 → 8458

Parity: odd

Prime: No

Previous Prime: 8447

Next Prime: 8461

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 2819

Divisors: 1, 3, 2819, 8457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10000100001001

Octal: 20411

Duodecimal: 4A89

Hexadecimal: 2109

Square: 71520849

Square Root: 91.96194865269004

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

Constant term in the reduction of the n-th Fibonacci polynomial by x³->x²+x+1. See Comments. A192616

a(n) = 2^prime(n-1) mod prime(n)². A196202

10-adic integer x=.....8457 satisfying x³ = -7. A225408

Row 4 of table A162430. A162433

Expansion of 1/(1-x-x²+2·x³). A77948

Values of·in x² - 49 = 2·y². A106525

Odd integers that do not generate monotonically decreasing infinitary aliquot sequences. A127667

a(n) is the index of the last occurrence of n in A316774. A316984

a(0) = 1, a(n) = floor(a(n - 1)*π). A134915

The·members of the positive proper solutions (x = x1(n), y = y1(n)) of the first class for the Pell equation x² - 2·y² = +7². A275793