Properties of the Number 11520

Eleven Thousand Five Hundred Twenty

Basics

Value: 11519 → 11520 → 11521

Parity: even

Prime: No

Previous Prime: 11519

Next Prime: 11527

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ⁸ × 3 ² × 5

Divisors: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110100000000

Octal: 26400

Duodecimal: 6800

Hexadecimal: 2d00

Square: 132710400

Square Root: 107.33126291998991

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: Yes

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) = n*(n+1)*2^n-2. A1788

Triangle whose (i,j)-th entry is binomial(i,j)*2^i-j. A38207

Triangle of coefficients in expansion of (1+2·x)ⁿ. A13609

a(n) = 5·n². A33429

a(n) = ∏_{p prime} p^{∑_k>=0 floor[(n-1)/((p-1)p^k)]}. A53657

Highly factorable numbers: numbers with a record number of proper factorizations. A33833

11-almost primes (generalization of semiprimes). A69272

Products of superprimorials (A006939). A181818

Triangle read by rows: terms T(n,k) of a binomial decomposition of nⁿ as Sum(k=0..n)T(n,k). A244121

Triangle read by rows: terms T(n,k) of a binomial decomposition of nⁿ as Sum(k=0..n)T(n,k). A244123