Properties of the Number 2623

Two Thousand Six Hundred Twenty-Three

Basics

Value: 2622 → 2623 → 2624

Parity: odd

Prime: No

Previous Prime: 2621

Next Prime: 2633

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 43 × 61

Divisors: 1, 43, 61, 2623

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101000111111

Octal: 5077

Duodecimal: 1627

Hexadecimal: a3f

Square: 6880129

Square Root: 51.21523210920751

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 integer partitions of n that can be partitioned into two or more blocks with equal sums. A321452

Coordination sequence for (3,3,7) tiling of hyperbolic plane. A265074

Total sum T(n,k) of the sizes of all blocks with maximal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A270701

Total sum T(n,k) of the sizes of all blocks with minimal element k in all set partitions of {1,2,...,n}; triangle T(n,k), n>=1, 1<=k<=n, read by rows. A270702

a(n) = n*(n + 18). A98850

MM-numbers of nesting multiset partitions. A326256

a(n) = 2·n² + n - 5. A100040

MM-numbers of capturing multiset partitions. A326255

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

Numbers n such that the second maximal prime <= sqrt(n) is the least prime divisor of n. A247393