Properties of the Number 19159

Nineteen Thousand One Hundred Fifty-Nine

Basics

Value: 19158 → 19159 → 19160

Parity: odd

Prime: No

Previous Prime: 19157

Next Prime: 19163

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 ² × 17 × 23

Divisors: 1, 7, 17, 23, 49, 119, 161, 391, 833, 1127

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101011010111

Octal: 45327

Duodecimal: B107

Hexadecimal: 4ad7

Square: 367067281

Square Root: 138.4160395329963

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 k where sin(k) increases monotonically to 1 (or cosec(k) decreases). A46959

Nonnegative values·of solutions (x, y) to the Diophantine equation x²+(x+161)² = y². A206426

a(n)² is the start of the first occurrence of n consecutive perfect powers, all of which are squares with exponents equal to 2 (A111245). A340663

Totally multiplicative sequence with a(p) = a(p-1) + 6 for prime p. A166703

Least m such that φ-Composite-Harmonic series ∑_k=1..m 1/A000010(A002808(k)) >= n. A74470

Difference between squares of legs of primitive Pythagorean triangles, sorted (with multiplicity). A127923

Numbers k where cos(k) decreases monotonically to 0. A46957

a(1) = 1; for n>1, let k = n-1 mod 4, then a(n) = operation k applied to the pair (a(n-1), n), where operation 1 is addition, operation 2 is difference (with reset to n if 0), operation 3 is multiplication and operation 0 is division with rounding. A211346

Table read by upward antidiagonals: T(n,k) is the number of strings of length k over an n-letter alphabet that have a bifix; n, k >= 1. A342240

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite MFI = ZSM-5 Nan[AlnSi96-nO192] starting with a T2 atom. A19159