Properties of the Number 19790

Nineteen Thousand Seven Hundred Ninety

Basics

Value: 19789 → 19790 → 19791

Parity: even

Prime: No

Previous Prime: 19777

Next Prime: 19793

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 1979

Divisors: 1, 2, 5, 10, 1979, 3958, 9895, 19790

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100110101001110

Octal: 46516

Duodecimal: B552

Hexadecimal: 4d4e

Square: 391644100

Square Root: 140.67693485429658

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

Minimal exponents m such that the fractional part of (π-2)^m obtains a minimum (when starting with m=1). A153717

Number of compositions (ordered partitions) of n into distinct parts, the least being 5. A339166

Numbers k such that 210·k+{11, 13, 17, 19, 23, 29} are 6 consecutive primes. A182282

Number of graphs with vertices labeled with positive integers summing to n. A340022

Number of 3's in n-th term of A007651. A22468

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 54", based on the 5-celled von Neumann neighborhood. A270024

Expansion of ∏_k>0 (1 + ∑_m>=0 x^{k·2^m}). A304393

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (0, 0, -1), (0, 1, -1), (0, 1, 1), (1, 0, 0)}. A150178

Number of strings of numbers x(i=1..7) in 0..n with sum i²*x(i)³ equal to 49·n³. A184322

Number of integers m, 1 <= m <= A002569(n), that are not terms in the triangle T(n,k) of A008284. A292994