Properties of the Number 99143

Ninety-Nine Thousand One Hundred Forty-Three

Basics

Value: 99142 → 99143 → 99144

Parity: odd

Prime: No

Previous Prime: 99139

Next Prime: 99149

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 11 × 9013

Divisors: 1, 11, 9013, 99143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11000001101000111

Octal: 301507

Duodecimal: 4945B

Hexadecimal: 18347

Square: 9829334449

Square Root: 314.8698143677796

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

Numbers k such that 5·10^k + R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56713

Number of zero-sum -6..6 arrays of n elements with first and second differences also in -6..6. A201871

Number of zero-sum -n..n arrays of 7 elements with first and second differences also in -n..n. A201878

T(n,k)=Number of zero-sum -k..k arrays of n elements with first and second differences also in -k..k. A201873

Least k such that S(k) = S(k+n), or 0 if there is no k, where S is the Kempner function A002034. A99143