Properties of the Number 61420

Sixty-One Thousand Four Hundred Twenty

Basics

Value: 61419 → 61420 → 61421

Parity: even

Prime: No

Previous Prime: 61417

Next Prime: 61441

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 37 × 83

Divisors: 1, 2, 4, 5, 10, 20, 37, 74, 83, 148

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1110111111101100

Octal: 167754

Duodecimal: 2B664

Hexadecimal: efec

Square: 3772416400

Square Root: 247.83058729704854

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

a(n) = 2ⁿ - A000031(n). A209970

Total number of "humps" in all A005316(2n) open meanders with 2n crossings. A77056

a(n) = a(ceiling((n-1)*2/3)) + 1 with a(0) = 0. A61420