Properties of the Number 7897

Seven Thousand Eight Hundred Ninety-Seven

Basics

Value: 7896 → 7897 → 7898

Parity: odd

Prime: No

Previous Prime: 7883

Next Prime: 7901

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 53 × 149

Divisors: 1, 53, 149, 7897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111011011001

Octal: 17331

Duodecimal: 46A1

Hexadecimal: 1ed9

Square: 62362609

Square Root: 88.86506625215557

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

Centered heptagonal numbers. A69099

Partial sums of A299287. A299288

Number of integer partitions of n containing no prime indices of the parts. A324756

a(n) = ceiling(∑_i=1..n-1 a(i)/4) for n >= 2 starting with a(1) = 1. A120160

T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and column sum nonprime and every diagonal and antidiagonal sum prime. A251845

Numbers whose smallest decimal digit is 7. A284068

Lexicographically first sequence of distinct terms such that any set of three successive digits can be reordered as {d, d+1, d+2}, d being the smallest of the three digits. A302173

a(n) = prime(n)² - n. A182174

Number of multisets of nonempty words with a total of n letters over binary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter. A293732

a(n) = 49n² - 28n - 20. A118058