Properties of the Number 23290

Twenty-Three Thousand Two Hundred Ninety

Basics

Value: 23289 → 23290 → 23291

Parity: even

Prime: No

Previous Prime: 23279

Next Prime: 23291

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 5 × 17 × 137

Divisors: 1, 2, 5, 10, 17, 34, 85, 137, 170, 274

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101101011111010

Octal: 55372

Duodecimal: 1158A

Hexadecimal: 5afa

Square: 542424100

Square Root: 152.6106156202772

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 non-graphical integer partitions of 2n. A339617

Numerator of least value of the squared diameters of the enclosing circles of all strictly convex lattice n-gons with minimal area given by A070911. A321693

Number of ways in which n identical balls can be distributed among 5 boxes in a row such that each pair of adjacent boxes contains at least 4 balls. A5338

Numbers k such that 19·2^k+1 is prime. A32359

Numbers k such that σ(k-2) + σ(k+2) = σ(2k). A67172

Triangle T(n, k) = (-1)ⁿ*StirlingS1(n, k)*StirlingS1(n, n-k), read by rows. A155742

Triangle T(n, k) = (-1)ⁿ*StirlingS1(n, j)*StirlingS1(n, n-j), with T(n, 0) = T(n, n) = 1, read by rows. A155868

Numbers of rank 2 in the poset of lunar numbers. A144175

Primes that remain prime through 3 iterations of function f(x) = 7x + 6. A23290

Number of (n+1)X(4+1) 0..1 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise. A235675