Properties of the Number 2622

Two Thousand Six Hundred Twenty-Two

Basics

Value: 2621 → 2622 → 2623

Parity: even

Prime: No

Previous Prime: 2621

Next Prime: 2633

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 19 × 23

Divisors: 1, 2, 3, 6, 19, 23, 38, 46, 57, 69

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101000111110

Octal: 5076

Duodecimal: 1626

Hexadecimal: a3e

Square: 6874884

Square Root: 51.20546845796843

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

Squarefree numbers with a divisor having the same sum of prime indices as their quotient. A357854

3 times heptagonal numbers: a(n) = 3·n*(5·n-3)/2. A152773

Numbers k such that σ(k) = σ(k+10). A15880

Completely multiplicative function with a(prime(k)) = prime(k)*prime(k+1). A191002

Rectangular table, read by antidiagonals, such that the o.g.f. of row n, R_n(y), satisfies: R_n(y) = ∑_k>=0 y^k * R_k(y)ⁿ for n>=0, with R₀(y) = 1/(1-y). A124460

5-Stirling numbers of the second kind. A193685

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with each row divisible by 3 and each column divisible by 5, read as a binary number with top and left being the most significant bits. A262472

Numbers k such that 5·2^k - 1 is prime. A1770

Positive numbers whose product of digits is four times their sum. A62036

Numbers k with property that for every base b >= 2, there is a number m such that m+s(m) = k, where s(m) = sum of digits in the base-b expansion of m. A230624