Properties of the Number 78402

Seventy-Eight Thousand Four Hundred Two

Basics

Value: 78401 → 78402 → 78403

Parity: even

Prime: No

Previous Prime: 78401

Next Prime: 78427

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 73 × 179

Divisors: 1, 2, 3, 6, 73, 146, 179, 219, 358, 438

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011001001000010

Octal: 231102

Duodecimal: 39456

Hexadecimal: 13242

Square: 6146873604

Square Root: 280.00357140579473

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) = floor(n*(n-1)*(n-2)*(n-3)/31). A11941

a(n) = 108·n² - 228·n + 114 (n>=2). A304618

Number of walks within N² (the first quadrant of Z²) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 1), (0, -1), (1, 0), (1, 1)}. A151438

Numbers k such that k² + 5 is prime. A78402