Properties of the Number 78324

Seventy-Eight Thousand Three Hundred Twenty-Four

Basics

Value: 78323 → 78324 → 78325

Parity: even

Prime: No

Previous Prime: 78317

Next Prime: 78341

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 61 × 107

Divisors: 1, 2, 3, 4, 6, 12, 61, 107, 122, 183

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011000111110100

Octal: 230764

Duodecimal: 393B0

Hexadecimal: 131f4

Square: 6134648976

Square Root: 279.8642528083928

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

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 4·x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - x - x². A367209

A nonsense sequence. A89075

Consider a decimal number of k>=2 digits z = d_k*10^k-1 + d_k-1*10^k-2 + ... + d₂*10 + d₁ and the sum y = ∑_x=2..k {∑_j=1..k-x{d_j+x-1*10^j-1} - ∑_j=1..x-1{d_j*10^j-1}}. Sequence lists the numbers for which y = τ(z), where τ(z) is the number of divisors of z. A248904

Primes of the form m·rad(m)+1, where rad = A007947 (squarefree kernel). A78324