Properties of the Number -9897

Eight Hundred Ninety-Seven

Basics

Value: -9898 → -9897 → -9896

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 3299

Divisors: 1, 3, 3299, 9897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10011010101001

Octal: -23251

Duodecimal: -5889

Hexadecimal: -26a9

Square: 97950609

Square Root: 99.48366700117161

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+1) = a(n)-th composite number, with a(0) = 1. A6508

Numbers with rounded up arithmetic mean of digits = 9. A178369

Row sums of the triangle A322550. A320043

The smallest positive number such that sopfr(|a(n) - n|) = sopfr(a(n) + n) and ω(|a(n) - n|) = ω(a(n) + n), where sopfr(k) is the sum of the primes dividing k, with repetition. A370504

Indices of primes in sequence defined by A(0) = 79, A(k) = 10·A(k-1) - 81 for k > 0. A101130

Numbers k for which 14·k+1, 14·k+5, 14·k+11 and 14·k+13 are primes. A123987

Triangle read by rows: T(n, k) = ∑_i=0..n Stirling2(i, k). A137596

Triangle read by rows, A000012·A008277. A137649

Numbers k such that anti-φ(k) = anti-φ(k+1). A241003

The smallest positive number of the form 3ⁿ-2^a-2^b. A292425