Properties of the Number 11157

Eleven Thousand One Hundred Fifty-Seven

Basics

Value: 11156 → 11157 → 11158

Parity: odd

Prime: No

Previous Prime: 11149

Next Prime: 11159

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 3719

Divisors: 1, 3, 3719, 11157

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10101110010101

Octal: 25625

Duodecimal: 6559

Hexadecimal: 2b95

Square: 124478649

Square Root: 105.62670116973264

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 k!!-4 is prime. A123910

Number of compositions of n with equal differences up to sign. A325557

Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 24. A51965

Index where prime(n) appears as a term in A379248. A379290

Indices of squares of primes in A098550. A251240

Consider all integer triples (i,j,k), j,k>0, with binomial(i+2,3)=binomial(j+2,3)+k³, ordered by increasing i; sequence gives i values. A54221

a(n) is the sum of the smallest parts of all partitions of n that do not contain 1 as a part. A182708

Numbers that match polynomials over {0,1} that have a factor containing -3 as a coefficient; see Comments. A208182

Number of partitions p of n such that 3·min(p) is a part of p. A238590

Lucky numbers with size of gaps equal to 20 (upper terms). A31903