Properties of the Number 19247

Nineteen Thousand Two Hundred Forty-Seven

Basics

Value: 19246 → 19247 → 19248

Parity: odd

Prime: No

Previous Prime: 19237

Next Prime: 19249

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 19 × 1013

Divisors: 1, 19, 1013, 19247

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101100101111

Octal: 45457

Duodecimal: B17B

Hexadecimal: 4b2f

Square: 370447009

Square Root: 138.7335575843134

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 fibevil primes (A095084) in range ]2ⁿ,2ⁿ⁺¹]. A95064

Integers n where n³ + (n+1)³ is a Taxicab number A001235. A259836

a(n) = (n+1)*(n³+15·n²+74·n+132)/12. A217947

Positive integers n such that the sum of the squares of all the substring decompositions of n is a multiple of n. A154562

Operation count to create all permutations of n distinct elements using the "streamlined" version of Algorithm L (lexicographic permutation generation) from Knuth's The Art of Computer Programming, Vol. 4, chapter 7.2.1.2. Sequence gives total executions of step L3.1'. A79753

Number of 6 X n 0..1 arrays with rows nondecreasing and antidiagonals unimodal. A224137

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VET = VPI-8 [Si17O34] starting with a T1 atom. A19247