Properties of the Number 11555

Eleven Thousand Five Hundred Fifty-Five

Basics

Value: 11554 → 11555 → 11556

Parity: odd

Prime: No

Previous Prime: 11551

Next Prime: 11579

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 2311

Divisors: 1, 5, 2311, 11555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110100100011

Octal: 26443

Duodecimal: 682B

Hexadecimal: 2d23

Square: 133518025

Square Root: 107.49418588928427

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

Number of partitions of n such that some part is a sum of two or more other parts. A237668

a(n) = floor(n*φ¹⁸), where φ is the golden ratio, A001622. A4933

Numbers using only digits 1 and 5. A276037

Number of integer partitions with sum <= n whose distinct parts can be linearly combined using nonnegative coefficients to obtain n. A365379

Numbers that are the sum of six fourth powers in four or more ways. A345561

Numbers that are the sum of six fourth powers in exactly four ways. A345816

a(n) = a(n-1) + a(n-2) + 1 for n > 1, a(0)=1, a(1)=5. A22319

Numbers k such that A003415(k) == A276085(k) (mod 2310), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function. A391864

Expansion of g.f. 5*(1-x-x²)/((1+x)*(1-3·x+x²)). A189316

(prime(n)*(prime(n+1)-1) + (prime(n)-1)*prime(n+1)) / 2. A99909