Properties of the Number 11913

Eleven Thousand Nine Hundred Thirteen

Basics

Value: 11912 → 11913 → 11914

Parity: odd

Prime: No

Previous Prime: 11909

Next Prime: 11923

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 19 ²

Divisors: 1, 3, 11, 19, 33, 57, 209, 361, 627, 1083

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10111010001001

Octal: 27211

Duodecimal: 6A89

Hexadecimal: 2e89

Square: 141919569

Square Root: 109.14669028422254

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

Multiples of 19 containing a 19 in their decimal representation. A121039

Except a(0)=1 and a(4)=0, number of integer partitions of n with no 1's and at least two parts. A379720

Number of partitions of n into >= 2 parts and with minimum part >= 2. A83751

Molien series for invariants of finite Coxeter group D₁₂ (bisected). A266775

T(n,k)=Number of arrays of -k..k integers x(1..n) with every x(i) being in a subsequence of length 1, 2, 3 or 4 with sum zero. A193710

Number of partitions of n having population standard deviation > 1. A238619

a(n) = a(n-1) + a(n-2) + n, a(0) = a(1) = 1. A30119

Number of partitions of n in which both smallest and largest part occur only once. A117995

Composite numbers k such that digits in k and in juxtaposition of prime factors of k are the same (apart from multiplicity). A35141

Table T(n,k) read by rows which contains in row n and column k the sum of A001055(A036035(n,j)) over all column indices j where A036035(n,j) has k distinct prime factors. A93936