Properties of the Number 80669

Eighty Thousand Six Hundred Sixty-Nine

Basics

Value: 80668 → 80669 → 80670

Parity: odd

Prime: Yes

Previous Prime: 80657

Next Prime: 80671

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 80669

Divisors: 1, 80669

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011101100011101

Octal: 235435

Duodecimal: 3A825

Hexadecimal: 13b1d

Square: 6507487561

Square Root: 284.0228864017828

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 p such that p+2, 2p+1, and 2p+3 are also prime. A69142

Lexicographically earliest sequence of positive integers with the property that a(a(n)) = a(1)+a(2)+...+a(n). A105753

Primes of the form k² + 13. A138375

Primes having only {0, 6, 8, 9} as digits. A53580

For a lesser p of twin primes, let B_p+2 and B_p be sequences defined as A159559, but with initial terms p+2 and p respectively. The sequence lists p for which all differences B_p+2(n)-B_p(n)<=6. A276848

Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,4,2). A78948

Fastest increasing sequence in which a(n) is a prime closest to the sum of all previous terms. A109278

Primes that contain all the digits {0,6,8,9} and only these digits. A156200

Primes of the form x² + 17·y², where·and y=x+1 are consecutive natural numbers. A176622

Numbers n such that n is a twin prime and 2n + 1 is a twin prime. A261463