Properties of the Number 33390

Thirty-Three Thousand Three Hundred Ninety

Basics

Value: 33389 → 33390 → 33391

Parity: even

Prime: No

Previous Prime: 33377

Next Prime: 33391

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 7 × 53

Divisors: 1, 2, 3, 5, 6, 7, 9, 10, 14, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1000001001101110

Octal: 101156

Duodecimal: 173A6

Hexadecimal: 826e

Square: 1114892100

Square Root: 182.72930799409272

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 such that every pair of distinct parts has a different product. A325856

Primitive terms of A388036. A388037

Number of partitions of [n] such that the minimal element of each block is also its size. A364207

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)+1 are twin primes with p(h) = h-th prime. A129311

Expansion of χ(x²) / φ(x) in powers of·where φ(), χ() are Ramanujan θ functions. A246712

Triangle read by rows: T(n,k) is the number of set partitions of the set {1,2,...,n} containing k blocks of size 2 (0 <= k <= floor(n/2)). A124498

Triangle whose inverse has production matrix with general term (-1)^n-k+1*C(k+1, n-k+1). A172381

Primitive terms of A023197 that are of the form 4u+2. A388020

Ordered m for which m = k³*a·b*(a⁴ - b⁴) determine (unique) solution triples(k,a,b), where k=1,2,3,... and (a,b) are coprime pairs, not both odd (i.e., of opposite parity). A81779

Number of length 1+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth. A248538