Properties of the Number 83415

Eighty-Three Thousand Four Hundred Fifteen

Basics

Value: 83414 → 83415 → 83416

Parity: odd

Prime: No

Previous Prime: 83407

Next Prime: 83417

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 67 × 83

Divisors: 1, 3, 5, 15, 67, 83, 201, 249, 335, 415

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100010111010111

Octal: 242727

Duodecimal: 40333

Hexadecimal: 145d7

Square: 6958062225

Square Root: 288.8165507722852

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

Numbers k such that 9·2^k - 1 is prime. A2236

Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2) + 1, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4. A293316

Number of 3X3X3 triangular 0..n arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and every horizontal row having the same average value. A214541

Triangle read by rows: T(n,k) is defined as follows. Write the numbers from 1 to n² consecutively in n rows of length n; T(n,k) = number of primes in k-th row. A83415

Number of 5X(n+1) 0..2 arrays with every 2 X 2 subblock having the same number of clockwise edge increases as its horizontal neighbors and no 2 X 2 subblock having the same number of counterclockwise edge increases as its vertical neighbors. A205740