Properties of the Number 15550

Fifteen Thousand Five Hundred Fifty

Basics

Value: 15549 → 15550 → 15551

Parity: even

Prime: No

Previous Prime: 15541

Next Prime: 15551

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 ² × 311

Divisors: 1, 2, 5, 10, 25, 50, 311, 622, 1555, 3110

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11110010111110

Octal: 36276

Duodecimal: 8BBA

Hexadecimal: 3cbe

Square: 241802500

Square Root: 124.69963913339926

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

Row 3 of A007754. A58794

Union_{odd primes p, n >= 3} {T_p(n)}, where T_m(x) = x·T_m-1(x) - T_m-2(x), m >= 2, T₀(x) = 2, T₁(x) = x (dilated Chebyshev polynomials of the first kind). A299071

a(n) = n³ - 3·n. A121670

Integer part of Gauss's Arithmetic-Geometric Mean M(1,n⁴). A127760

Number of minimal subsets of {1..n} containing n whose sum is greater than or equal to the sum of their complement. A326175

Number of partitions p of n such that the number of distinct parts is not a part and max(p) - min(p) is a part. A241388

Array read by antidiagonals: T(m,n) is the number of induced cycles in the rook graph K_m X K_n. A360853

Expansion of (1 - x² + x³)/((1 - x² + x³)² - 4·x³). A376787

a(n) = 25·a(n-1) - a(n-2), starting with a(0) = 2 and a(1) = 25. A90733

Irregular array where the n-th row are the divisors, not occurring earlier in the sequence, of the sum of the terms in all previous rows. a(1)=4. A120578