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Properties of the Number 33990

Thirty-Three Thousand Nine Hundred Ninety

Basics

Value: 33989 → 33990 → 33991

Parity: even

Prime: No

Previous Prime: 33967

Next Prime: 33997

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 11 × 103

Divisors: 1, 2, 3, 5, 6, 10, 11, 15, 22, 30

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1000010011000110

Octal: 102306

Duodecimal: 17806

Hexadecimal: 84c6

Square: 1155320100

Square Root: 184.36377084449103

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

Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 1 + 2·x, p(n,x) = u·p(n-1,x) + v·p(n-2,x) for n >= 3, where u = p(2,x), v = 1 + 3·x2. A368518
Number of partitions of n such that the number of even parts is a part or the number of odd parts is a part. A240576
a(n) = 2·n*(16·n - 13). A263228
Coefficient of·in minimal polynomial of the continued fraction [1n,1/2,1,1,1,...], where 1n means n ones. A266700
Products of 5 distinct primes that are sandwiched between squarefree semiprime numbers. A376949
Write 0,1,2,... in a clockwise spiral on a square lattice, writing each digit at a separate lattice point, starting with 0 at the origin and 1 at x=0, y=-1; sequence gives the numbers on the negative y-axis. A33990
T(n,k) = number of arrays of n 0..k integers with new values introduced in order 0..k but otherwise unconstrained. Array read by antidiagonals. A203647
G.f. A(x) satisfies: [xn-1] 1/A(x)n2 = 0 for n>2. A292877
G.f. A(x) satisfies: 0 = [xn-1] 1 / A(x)n2+n-1 for n>2. A303562
Number of arrays of n 0..11 integers with new values introduced in order 0..11 but otherwise unconstrained. A203642