Properties of the Number 19375

Nineteen Thousand Three Hundred Seventy-Five

Basics

Value: 19374 → 19375 → 19376

Parity: odd

Prime: No

Previous Prime: 19373

Next Prime: 19379

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 ⁴ × 31

Divisors: 1, 5, 25, 31, 125, 155, 625, 775, 3875, 19375

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101110101111

Octal: 45657

Duodecimal: B267

Hexadecimal: 4baf

Square: 375390625

Square Root: 139.19410907075056

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

a(n) = n*(n+1)*(4·n+5)/6. A16061

Coefficient of xⁿ in expansion of (1+n·x+n·x²)ⁿ. A92366

Coefficients in q-expansion of (3·E₂*E₄ - 2·E₆ - E₂³)/1728, where E₂, E₄, E₆ are the Eisenstein series shown in A006352, A004009, A013973, respectively. A282097

Stirling2 triangle with scaled diagonals (powers of 5). A75500

Expansion of 1/((1-5·x)*(1-10·x)). A16164

Lesser of two consecutive numbers each divisible by a fourth power. A68782

Row sums of triangle A120072 (numerator triangle for H atom spectrum). A120074

Sums of 3 distinct powers of 5. A38475

Position of 3ⁿ in A051037 (5-smooth numbers). A188426

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 - 2·k*x + k*(k-4)*x²). A307910