Properties of the Number 19111

Nineteen Thousand One Hundred Eleven

Basics

Value: 19110 → 19111 → 19112

Parity: odd

Prime: No

Previous Prime: 19087

Next Prime: 19121

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 29 × 659

Divisors: 1, 29, 659, 19111

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101010100111

Octal: 45247

Duodecimal: B087

Hexadecimal: 4aa7

Square: 365230321

Square Root: 138.24254048591555

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

Numbers with multiplicative digital root value 9. A34056

Numbers using only digits 1 and 9. A284294

Expansion of ∑_k>0 x^2·k/(1+x^k)⁵. A363613

Composites in base 10 that remain composite in exactly four bases b, 2 <= b <= 10, expansions interpreted as decimal numbers. A256354

Smallest k such that |M(k)| = n², where M(x) is Mertens's function A002321. A84234

Volume of elliptic cone (rounded down) with semi-minor axis = height = n and semi-major axis = 3·n/2. A228391

Positions of 0's in A330314. A330325

Molien series for complete weight enumerator of self-dual code over GF(5) containing all-1's vector. A28345

Near-repunit semiprimes. A105993

Pyramid game person numbers that have integer solutions. A135051