Properties of the Number 3028

Three Thousand Twenty-Eight

Basics

Value: 3027 → 3028 → 3029

Parity: even

Prime: No

Previous Prime: 3023

Next Prime: 3037

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 757

Divisors: 1, 2, 4, 757, 1514, 3028

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 101111010100

Octal: 5724

Duodecimal: 1904

Hexadecimal: bd4

Square: 9168784

Square Root: 55.02726596879042

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

Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m·k + 1)*T(n-1, k, m) - m·f(n,k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1, f(n, k) = k if k <= floor(n/2) otherwise n-k, and m = 3, read by rows. A157212

Numerator of the average height of a binary search tree on n elements. A195582

Number of integer partitions of n into parts > 1 whose product is a multiple of n. A379734

Sum of gcd(x, y) for 1 <= x, y <= n. A18806

Numbers k such that φ(k) = φ(k+4), with Euler's totient function φ = A000010. A179186

Numbers k such that 5^k starts with k. A362097

a(n) = ∑_k=1..n lcm(k,n)/gcd(k,n). A56789

Positive discriminants of orders of quadratic fields with form class number 3. A391425

a(n) is the smallest number of grains of sand placed at the center square of a (2n-1) X (2n-1) table so that some grains drop off the table by the end of the diffusion process. A259013

Triangle read by rows: T(n, k) is the number of ways to select k disjoint point triples from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle. A289222