Properties of the Number 51478

Fifty-One Thousand Four Hundred Seventy-Eight

Basics

Value: 51477 → 51478 → 51479

Parity: even

Prime: No

Previous Prime: 51473

Next Prime: 51479

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 3677

Divisors: 1, 2, 7, 14, 3677, 7354, 25739, 51478

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1100100100010110

Octal: 144426

Duodecimal: 2595A

Hexadecimal: c916

Square: 2649984484

Square Root: 226.88763738908298

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

Numbers k such that 5·2^k - 1 is prime. A1770

Numbers that are the sum of six fifth powers in two or more ways. A345507

Numbers that are the sum of six fifth powers in exactly two ways. A346357

Number of triangular partitions of n of order 3. A84439

Number of connected functions on n points with a loop of length 8. A29871

Total sum of parts of multiplicity 8 in all partitions of n. A222736

G.f. A(x) satisfies A(x) = 1/( (1-x)² * (1 - x·A(x) - x²*A'(x)) ). A386229

a(n) is the number of values k satisfying φ(k) = 4·n+2, n>0. A51478