Properties of the Number 6455

Six Thousand Four Hundred Fifty-Five

Basics

Value: 6454 → 6455 → 6456

Parity: odd

Prime: No

Previous Prime: 6451

Next Prime: 6469

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 1291

Divisors: 1, 5, 1291, 6455

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1100100110111

Octal: 14467

Duodecimal: 389B

Hexadecimal: 1937

Square: 41667025

Square Root: 80.34301463101818

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: Yes

Fermat Number: No

Cullen Number: No

OEIS Sequences

Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 24. A51989

a(n) = least k such that the remainder when 28^k is divided by k is n. A128368

Primitive numbers in A229304. A229308

Numbers k such that prime(k) == 3 (mod k). A23145

Values of π(x) where·exceeds n * π(x). A38624

a(n) = a(n-1) + a(m) for n >= 4, where m = 2^p+1 + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = 1, a(2) = 2, and a(3) = 4. A50053

Index of smallest prime number where n consecutive leading digits of the index match n consecutive leading digits in the prime. A133583

"Orderly" Friedman numbers (or "good" or "nice" Friedman numbers): Friedman numbers (A036057) where the construction digits are used in the proper order. A80035

Expansion of g.f. (1 + x + 2·x²)/((1 - x)³*(1 - x³)). A92498

Number of n-regular, N₀-weighted pseudographs on 2 vertices with total edge weight 8, up to isomorphism. A358248