Properties of the Number 19258

Nineteen Thousand Two Hundred Fifty-Eight

Basics

Value: 19257 → 19258 → 19259

Parity: even

Prime: No

Previous Prime: 19249

Next Prime: 19259

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 2 × 9629

Divisors: 1, 2, 9629, 19258

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100101100111010

Octal: 45472

Duodecimal: B18A

Hexadecimal: 4b3a

Square: 370870564

Square Root: 138.77319625922004

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) = ∑_{d divides n} d^{n/d + 1}. A78308

Number of (1,0)-steps of weight 1 in all weighted lattice paths in L_n. A182884

Number of integer compositions of n with all run-lengths > 2. A353400

a(n) = ∑_d∣n d² * (d+1)/2. A278403

Sums of 4 distinct powers of 7. A38483

Numbers k such that 8·R_k + 10^k - 7 is prime, where R_k = 11...11 is the repunit (A002275) of length k. A259119

T(n,k)=Number of nondecreasing arrangements of n+2 numbers in 0..k with each number being the sum mod (k+1) of two others. A183912

Number of tilings of a 4 X n rectangle using monominoes and trominoes of any shape. A270064

n-th digit after decimal point of (sqrt(n²+4)-n)/2. A85552

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite VNI = VPI-9 Rb44K4[Zn24Si96O240].48H2O starting with a T5 atom. A19258