Properties of the Number 61408

Sixty-One Thousand Four Hundred Eight

Basics

Value: 61407 → 61408 → 61409

Parity: even

Prime: No

Previous Prime: 61403

Next Prime: 61409

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ⁵ × 19 × 101

Divisors: 1, 2, 4, 8, 16, 19, 32, 38, 76, 101

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110111111100000

Octal: 167740

Duodecimal: 2B654

Hexadecimal: efe0

Square: 3770942464

Square Root: 247.80637602773663

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 sopf(k) = sopf(k+2), where sopf(k) = A008472(k). A63968

Number of irregular primes less than 2ⁿ. A105456

For each y >= 1 there are only finitely many values of x >= 1 such that x-y and x+y are both positive squares; list all such pairs (x,y) ordered by values of y; sequence gives y values. A61408