Properties of the Number 78220

Seventy-Eight Thousand Two Hundred Twenty

Basics

Value: 78219 → 78220 → 78221

Parity: even

Prime: No

Previous Prime: 78203

Next Prime: 78229

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 ² × 5 × 3911

Divisors: 1, 2, 4, 5, 10, 20, 3911, 7822, 15644, 19555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011000110001100

Octal: 230614

Duodecimal: 39324

Hexadecimal: 1318c

Square: 6118368400

Square Root: 279.6783867230359

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

First differences of the Poly-Bernoulli numbers B_n^k with k=-2 (A027649). A53581

a(n) = number of solutions to the Diophantine equation x+y²+z³=n⁴ with positive x,y,z. A121876

Number of multisets of exactly two partitions of positive integers into distinct parts with total sum of parts equal to n. A320787

Smallest k such that floor(k*π) begins with n (π=3.14159...). A78220