Properties of the Number 7315

Seven Thousand Three Hundred Fifteen

Basics

Value: 7314 → 7315 → 7316

Parity: odd

Prime: No

Previous Prime: 7309

Next Prime: 7321

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 7 × 11 × 19

Divisors: 1, 5, 7, 11, 19, 35, 55, 77, 95, 133

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1110010010011

Octal: 16223

Duodecimal: 4297

Hexadecimal: 1c93

Square: 53509225

Square Root: 85.5277732669336

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

Binomial coefficient binomial(n,4) = n*(n-1)*(n-2)*(n-3)/24. A332

Pentagonal numbers with even index. A49452

Number T(n,k) of set partitions of [n] such that the maximal absolute difference between the least elements of consecutive blocks equals k; triangle T(n,k), n>=0, 0<=k<=max(n-1,0), read by rows. A287215

Integers that are Rhonda numbers to base 12. A100971

T(n,k)=Number of nondecreasing arrangements of n numbers x(i) in -(n+k-2)..(n+k-2) with the sum of sign(x(i))*x(i)² zero. A188002

Heinz numbers of integer partitions with as many even parts as odd parts and as many even conjugate parts as odd conjugate parts. A350946

Triangle, read by rows, where T(n,k) = C(n*(n-1)/2 - k*(k-1)/2 + n-k, n-k). A107862

Number of compositions of n into 5 ordered relatively prime parts. A743

Triangle read by rows, 1 <= k <= n: T(n,k) = non-isomorphic colorings of a toroidal n X k grid using exactly two colors under translational symmetry and swappable colors. A294791

Binomial coefficients C(2·n+4,4). A53134