Properties of the Number 7898

Seven Thousand Eight Hundred Ninety-Eight

Basics

Value: 7897 → 7898 → 7899

Parity: even

Prime: No

Previous Prime: 7883

Next Prime: 7901

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 11 × 359

Divisors: 1, 2, 11, 22, 359, 718, 3949, 7898

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111011011010

Octal: 17332

Duodecimal: 46A2

Hexadecimal: 1eda

Square: 62378404

Square Root: 88.87069258197553

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 stacks, or planar partitions of n; also number of weakly unimodal compositions of n. A1523

Sum of digits = 8 times number of digits. A61425

Right-angled numbers with an internal digit as the vertex. A135602

Expansion of ∏_k>0 theta₃(q^2·k-1), where theta₃() is the Jacobi θ function. A320078

Hoggatt sequence with parameter d=4. A5362

Triangle read by rows: row n (n >= 0) consists of the elements g(i, n-i) (0 <= i <= n), where g(r,s) = 1 + ∑_k=1..r ∏_i=0..k-1 binomial(r+s-1, s+i) / binomial(r+s-1, i). A116925

Numbers n such that n!8-1 is prime. A204662

Numbers whose smallest decimal digit is 7. A284068

Number of compositions of n whose circular differences are all 1 or -1. A325589

Expansion of g/(1 - x³*g), where g = 1+x·g³ is the g.f. of A001764. A391059