Properties of the Number 66173

Sixty-Six Thousand One Hundred Seventy-Three

Basics

Value: 66172 → 66173 → 66174

Parity: odd

Prime: Yes

Previous Prime: 66169

Next Prime: 66179

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 66173

Divisors: 1, 66173

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001001111101

Octal: 201175

Duodecimal: 32365

Hexadecimal: 1027d

Square: 4378865929

Square Root: 257.2411320143029

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

Primes equal to a centered heptagonal number plus 1. A285811

Number of subsets of {1,2,3,...,n} that sum to 0 mod 64. A68045

Primes not occurring as |differences| in Cald's sequence A006509. A117129

Primes with nine embedded primes. A179917

Primes p such that 2·p² + 3 and 2·p² + 5 are also primes. A247197

Number of (n+6)X12 0..1 matrices with each 7X7 subblock idempotent. A224586

Primes p such that p² - 8, p² - 6 and p² - 2 are prime. A176960

Suffixes of 4818372912366173 (all primes). A259848

T(n,k)=Number of (n+6)X(k+6) 0..1 matrices with each 7X7 subblock idempotent. A224588

Beginning with the n-th prime, the number of successive times a new prime can be formed by prepending the smallest nonzero digit. A101115