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Properties of the Number 7222

Seven Thousand Two Hundred Twenty-Two

Basics

Value: 7221 → 7222 → 7223

Parity: even

Prime: No

Previous Prime: 7219

Next Prime: 7229

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 23 × 157

Divisors: 1, 2, 23, 46, 157, 314, 3611, 7222

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1110000110110

Octal: 16066

Duodecimal: 421A

Hexadecimal: 1c36

Square: 52157284

Square Root: 84.98235110892143

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 for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811
a(0) = 1, a(n) = 5·n2 + 2 for n>0. A10001
Numbers n such that Bernoulli number Bn has denominator 282. A272184
Discriminants of real quadratic fields with class number 2 and related continued fraction period length of 24. A51989
T(n,k)=Number of nXk 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or antidiagonally, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order. A233217
Number of minimally rigid graphs in 2D on n vertices. A227117
Numbers that are the sum of six fifth powers in two or more ways. A345507
Numbers that are the sum of six fifth powers in exactly two ways. A346357
Triangle read by rows: T(n,g) = number of general immersions of a circle with n crossings in a surface of arbitrary genus g (the circle is not oriented, the surface is oriented). A260848
Expansion of ∏i>=1, j>=1 (1 + i·j*xi·j). A318416