Properties of the Number 15142

Fifteen Thousand One Hundred Forty-Two

Basics

Value: 15141 → 15142 → 15143

Parity: even

Prime: No

Previous Prime: 15139

Next Prime: 15149

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 67 × 113

Divisors: 1, 2, 67, 113, 134, 226, 7571, 15142

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101100100110

Octal: 35446

Duodecimal: 891A

Hexadecimal: 3b26

Square: 229280164

Square Root: 123.05283418109475

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

a(1) = 1; a(n > 1) = ∑_{0 < k < n} (-1)^{n - k - 1} a(n - k) ∑_d∣k a(d). A317853

G.f.: ∑_k>=0 2^k * x^k*(k+1) / ∏_j=1..k (1 - x^j). A376947

Absolute row sums of triangular matrix A101897, in which column k equals column 0 of A101897^k and where the n-th row sums are zero for n>0. A101901

Numbers k such that 7·10^k - 9 is prime. A103048

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 313", based on the 5-celled von Neumann neighborhood. A271202

Number of n X n binary arrays with rows and columns, considered as graycode numbers, in strictly increasing order, and no more than 4 ones in any row or column. A162121

Inverse of 1133rd cyclotomic polynomial. A15142