Properties of the Number 71398

Seventy-One Thousand Three Hundred Ninety-Eight

Basics

Value: 71397 → 71398 → 71399

Parity: even

Prime: No

Previous Prime: 71389

Next Prime: 71399

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 29 × 1231

Divisors: 1, 2, 29, 58, 1231, 2462, 35699, 71398

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001011011100110

Octal: 213346

Duodecimal: 3539A

Hexadecimal: 116e6

Square: 5097674404

Square Root: 267.20404188559723

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

Second binomial transform of the Catalan numbers. A64613

Triangle read by rows: row n is the first row of the matrix M[n]^n-1, where M[n] is the n X n tridiagonal matrix with main diagonal (3,4,4,...) and super- and subdiagonals (1,1,1,...). A124574

Denominators of continued fraction convergents to sqrt(698). A42343

Numbers n such that Lucas(prime(n)) is prime, where Lucas = A000032. A120561

Riordan array (f(x), x·f(x)) where f(x) is the g.f. of A064613. A171568

A(n, k) is the n-th binomial transform of the Catalan sequence (A000108) evaluated at k. Array read by descending antidiagonals for n >= 0 and k >= 0. A271025

[ exp(4/7)*n! ]. A30964

Rounded total surface area of a regular icosahedron with edge length n. A71398

Primes p such that six consecutive primes starting with p are congruent to {1,2,3,4,5,6} (mod 7). A215599