Properties of the Number 61305

Sixty-One Thousand Three Hundred Five

Basics

Value: 61304 → 61305 → 61306

Parity: odd

Prime: No

Previous Prime: 61297

Next Prime: 61331

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 61 × 67

Divisors: 1, 3, 5, 15, 61, 67, 183, 201, 305, 335

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111101111001

Octal: 167571

Duodecimal: 2B589

Hexadecimal: ef79

Square: 3758303025

Square Root: 247.59846526180246

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

Rounded volume of a regular dodecahedron with edge length n. A71401

Second column T[.,2] of array T = A255483: T[0,j] = prime(j), T[i+1,j] = T[i,j]*T[i,j+1]/gcd(T[i,j],T[i,j+1])², i >= 0, j >= 1. A276804

Define b(k) by the recursion b(1)=n, b(k+1)=b(k)-floor(k/b(k)). Sequence gives the value a(n) such that b(a(n))=0; if k>a(n) then b(k) is undefined. A74636

Squarefree Fibonacci numbers. A61305