Properties of the Number 2428

Two Thousand Four Hundred Twenty-Eight

Basics

Value: 2427 → 2428 → 2429

Parity: even

Prime: No

Previous Prime: 2423

Next Prime: 2437

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 607

Divisors: 1, 2, 4, 607, 1214, 2428

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 100101111100

Octal: 4574

Duodecimal: 14A4

Hexadecimal: 97c

Square: 5895184

Square Root: 49.27473997901968

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

Partial sums of primes, if 1 is regarded as a prime (as it was until quite recently, see A008578). A14284

Triangular array formed from successive differences of factorial numbers. A47920

a(n) = n·a(n-1) + (n-2)*a(n-2), a(0) = 0, a(1) = 2. A55790

Euler's difference table: triangle read by rows, formed by starting with factorial numbers (A000142) and repeatedly taking differences. T(n,n) = n!, T(n,k) = T(n,k+1) - T(n-1,k). A68106

Coefficients of the '3rd-order' mock θ function ω(q). A53253

Number of integer partitions of n such that (length) * (maximum) = 2n. A361853

Total number of ON cells at stage n of two-dimensional 5-neighbor outer totalistic cellular automaton defined by "Rule 454". A246326

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 3 neighboring 1s. A297607

5th forward differences of factorial numbers A000142. A1689

Positive integers k such that k²⁰ + 1 is semiprime (A001358). A105282