Properties of the Number 11956

Eleven Thousand Nine Hundred Fifty-Six

Basics

Value: 11955 → 11956 → 11957

Parity: even

Prime: No

Previous Prime: 11953

Next Prime: 11959

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 7 ² × 61

Divisors: 1, 2, 4, 7, 14, 28, 49, 61, 98, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10111010110100

Octal: 27264

Duodecimal: 6B04

Hexadecimal: 2eb4

Square: 142945936

Square Root: 109.34349546269316

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 integer partitions of n with a repeated part other than the least. A375405

Triangle read by rows: T(n,k) is the number of sensed combinatorial maps with n edges and k vertices, 1 <= k <= n + 1. A380615

G.f.: C - Z; where C is the g.f. for the Catalan numbers (A000108) and Z is the g.f. for A055113 with offset 0. A111160

Fourth accumulation array of A051340, by antidiagonals. A185876

Numbers n such that 4n + 1, 4n + 2 and 4n + 3 are not squarefree. A258332

Number of Dyck paths such that the sum of the peak-abscissae is n. A129528

Number of rooted binary perfect phylogenies with sample size n and 4 leaves. A389571

Shifts left under antidiagonal sums of the table (A095788) of iterated binomial transforms of this sequence. A95148

Table, read by antidiagonals, of iterated binomial transforms of A095148, which also forms the antidiagonal sums shift right. A95788

Records in A109734. A109739