Properties of the Number 74284

Seventy-Four Thousand Two Hundred Eighty-Four

Basics

Value: 74283 → 74284 → 74285

Parity: even

Prime: No

Previous Prime: 74279

Next Prime: 74287

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 7 ² × 379

Divisors: 1, 2, 4, 7, 14, 28, 49, 98, 196, 379

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10010001000101100

Octal: 221054

Duodecimal: 36BA4

Hexadecimal: 1222c

Square: 5518112656

Square Root: 272.55091267504497

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) = ∑_k=0..n C(floor((n+1)/2),floor((k+1)/2)) * 3^k. A97169

Row sums of triangle A137639. A137640

Numbers n such that 30n-13, 30n-11, 30n-1, 30n+1, 30n+11, 30n+13 are all prime. A175683

Number of 2Xn 0..1 arrays with exactly floor(2Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order. A222510

Sum of the aliquot divisors of n-th triangular number. A74284

Number of 4Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0, 1 or 2 neighboring 1s. A297377