Properties of the Number 11995

Eleven Thousand Nine Hundred Ninety-Five

Basics

Value: 11994 → 11995 → 11996

Parity: odd

Prime: No

Previous Prime: 11987

Next Prime: 12007

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 2399

Divisors: 1, 5, 2399, 11995

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10111011011011

Octal: 27333

Duodecimal: 6B37

Hexadecimal: 2edb

Square: 143880025

Square Root: 109.52168735004041

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 the continued fraction for sqrt(k) has period 100. A20439

G.f.: q-sinh(x) evaluated at q=-x. A198202

a(n)² is the start of the first occurrence of n consecutive perfect powers, all of which are squares with exponents equal to 2 (A111245). A340663

Number of true prime powers whose binary order, ceiling(log₂(p^x)), is n. A36380

a(n) is the smallest integer k > 1 such that k cannot be expressed as a sum of distinct earlier terms nor is a multiple of any earlier term. A330070

Numbers whose sum of divisors is equal to the product of the number of divisors of their k first powers, for some k. A283758

Composite terms in A330070. A330126

Number of isomers of alkyl homologs of adamantane with n carbon atoms. A36996

Number of n-node graphs containing a 4-cycle. A39751

Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=2, r=3, I={-1,0,2}. A80001