Properties of the Number 78961

Seventy-Eight Thousand Nine Hundred Sixty-One

Basics

Value: 78960 → 78961 → 78962

Parity: odd

Prime: No

Previous Prime: 78941

Next Prime: 78977

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 281 ²

Divisors: 1, 281, 78961

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011010001110001

Octal: 232161

Duodecimal: 39841

Hexadecimal: 13471

Square: 6234839521

Square Root: 281

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

Squares in which parity of digits alternates. A30152

Composite and every divisor (except 1) contains the digit 8. A62678

Sum of legs of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse. A89552

Squares which are palindromes in base 4. A29987

a(n) = (10·n + 1)². A17282

a(n) = (11·n + 6)². A17462

Square of primes of the form 4k+1 (A002144). A80109

Squares with initial digit '7'. A45791

a(n) = (14·n+1)². A134934

Third term of a triple of squares in arithmetic progression, which is not a multiple of another triple in (A198384,A198385,A198386). A198437