Properties of the Number 11143

Eleven Thousand One Hundred Forty-Three

Basics

Value: 11142 → 11143 → 11144

Parity: odd

Prime: No

Previous Prime: 11131

Next Prime: 11149

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 11 × 1013

Divisors: 1, 11, 1013, 11143

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101110000111

Octal: 25607

Duodecimal: 6547

Hexadecimal: 2b87

Square: 124166449

Square Root: 105.56040924513319

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 9·10^k - 1 is prime. A56725

Number of nonempty pairwise coprime subsets of {1,...,n}, where a single number is not considered to be pairwise coprime unless it is equal to 1. A320426

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order. A205753

Number of integer partitions of n with fewer parts than distinct divisors of parts. A371173

Number of integer partitions of n whose multiset of multiplicities has integer mean. A360069

Lexicographically earliest increasing sequence which lists the positions of the zero digits in the sequence. A167519

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges, and new values 0..2 introduced in row major order. A205475

Total sum of repeated parts in all partitions of n. A194544

Second diagonal of A027537. A27540

First differences of A309226: distances in A008348 from n-th low point to the next. A324783