Properties of the Number 26951

Twenty-Six Thousand Nine Hundred Fifty-One

Basics

Value: 26950 → 26951 → 26952

Parity: odd

Prime: Yes

Previous Prime: 26947

Next Prime: 26953

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 26951

Divisors: 1, 26951

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110100101000111

Octal: 64507

Duodecimal: 1371B

Hexadecimal: 6947

Square: 726356401

Square Root: 164.16759729008646

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 k! + 1 is prime. A2981

Expansion of ∏_{r = 1 or not a perfect power} 1/(1 - x^r). A305630

Primes p such that the number of primes less than p equal to 1 mod 4 is two less than the number of primes less than p equal to 3 mod 4. A96451

Primes p such that p! + 1 is also prime. A93804

Lesser of twin primes for which φ(p-1) < φ(p+1). A286715

Number of n-digit terms in A377912. A377917

Lower twin primes with lower twin prime index. A88460

a(n) = 22·n² + 1. A158537

Primes p such that p+2 and q are primes, where q is concatenation of binary representations of p and p+2: q = p·2^L + p+2, where L is the length of binary representation of p+2: L=A070939(p+2). A232238

Numbers n such that the sum of the heptagonal numbers H(n), H(n+1) and H(n+2) is equal to the pentagonal number P(m) for some m. A252115