Properties of the Number 15522

Fifteen Thousand Five Hundred Twenty-Two

Basics

Value: 15521 → 15522 → 15523

Parity: even

Prime: No

Previous Prime: 15511

Next Prime: 15527

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 13 × 199

Divisors: 1, 2, 3, 6, 13, 26, 39, 78, 199, 398

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11110010100010

Octal: 36242

Duodecimal: 8B96

Hexadecimal: 3ca2

Square: 240932484

Square Root: 124.58731877683218

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

Number of length n inversion sequences avoiding the patterns 101, 102, 201, and 210. A279561

a(n) = n*(8·n² - 5)/3. A63523

G.f.: 1/G(0) where G(k) = 1 - q^k+1 / (1 - q^k+2/G(k+1) ). A227309

Number of 5-dimensional partitions of n. A390

Sum of distinct orders of degree-n permutations. A60179

Smallest sets of 6 consecutive abundant numbers in arithmetic progression. The initial abundant number is listed. A228963

a(n) = number of numbers with digit sum n, not greater than the n-th repunit (cf. A052222). A242622

Antidiagonal sums of the convolution array A213778. A213780

Antidiagonal sums of the convolution array A213773. A213818

Smallest sets of 7 consecutive abundant numbers in arithmetic progression. The initial abundant number is listed. A228964