Properties of the Number -7226

Two Hundred Twenty-Six

Basics

Value: -7227 → -7226 → -7225

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 3613

Divisors: 1, 2, 3613, 7226

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1110000111010

Octal: -16072

Duodecimal: -4222

Hexadecimal: -1c3a

Square: 52215076

Square Root: 85.00588214941364

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

Centered square numbers: a(n) = 4·n² + 4·n + 2. A69894

Semiprimes of the form k²+1. A144255

Primitive numbers in A229304. A229308

a(n) = (n³ - 2·n² + 3·n + 2)/2. A189890

Triangle read by rows: T(n,k) is the number of Schroeder paths of length 2n having exactly k down steps hitting the x-axis. A101275

a(n) = ∑_{k <= n/2} k·binomial(n-2k, 3k). A137359

a(n) = 81·n² - 90·n + 26. A154295

Numbers in increasing order such that successive sums are squares and successive differences are squarefree. A90956

Semiprimes which are one more than a perfect power. A189047

Values of n such that A080221(n)=6; i.e., values of n such that n is divisible by the sum of digits of n when expressed in exactly 6 of the bases b=1...n. A271311