Properties of the Number 15048

Fifteen Thousand Forty-Eight

Basics

Value: 15047 → 15048 → 15049

Parity: even

Prime: No

Previous Prime: 15031

Next Prime: 15053

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ³ × 3 ² × 11 × 19

Divisors: 1, 2, 3, 4, 6, 8, 9, 11, 12, 18

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101011001000

Octal: 35310

Duodecimal: 8860

Hexadecimal: 3ac8

Square: 226442304

Square Root: 122.67028980156523

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 twice-partitions of type (Q,P,Q) and weight n. A279790

Numbers n such that n²⁰⁴⁸ + 1 is prime (a generalized Fermat prime). A88361

a(n) = 2·n*(7·n - 3). A316466

Sum over all partitions of n of the number of distinct parts i of multiplicity i. A276428

a(n+1) -+ a(n) = prime, a(n+1)*a(n) = average of twin prime pairs, a(1)=1, a(2)=6. A154494

Triangle read by rows in which the n-th row contains n lexicographically earliest distinct numbers such that the sum of the (n-1) terms other than the r-th term is divisible by r. A83796

Diagonal of A083796. A83797

Number of loopless rooted planar maps with 3 faces and n vertices and no isthmuses. Also a(n)=T(4,n-3), array T as in A049600. A6416

a(n) = 2·a(n-1) + prime(n) - prime(n-1), a(1)=2, where prime(n) denotes the n-th prime. A125180

a(n) = 11·n² + 22·n. A67705