Properties of the Number 99669

Ninety-Nine Thousand Six Hundred Sixty-Nine

Basics

Value: 99668 → 99669 → 99670

Parity: odd

Prime: No

Previous Prime: 99667

Next Prime: 99679

Digit Sum: 39

Digital Root: 3

Palindrome: No

Factorization: 3 × 33223

Divisors: 1, 3, 33223, 99669

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11000010101010101

Octal: 302525

Duodecimal: 49819

Hexadecimal: 18555

Square: 9933909561

Square Root: 315.70397526797154

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

a(n) = ((6·n+37)*4ⁿ - 1)/3. A72259

Number of primes < prime(n)³. A86688

Integers k, not divisible by any of their digits, such that ∑_{j = digits of k} k/j is an integer different from k. A393454

Numbers k such that φ(k) = φ(k+1). A1274

Partial sums of repdigits of A002276. A99669

The number of solutions to φ(x) = φ(x+1) below 10ⁿ, where φ(x) is the Euler totient function. A300285