Properties of the Number 99280

Ninety-Nine Thousand Two Hundred Eighty

Basics

Value: 99279 → 99280 → 99281

Parity: even

Prime: No

Previous Prime: 99277

Next Prime: 99289

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 ⁴ × 5 × 17 × 73

Divisors: 1, 2, 4, 5, 8, 10, 16, 17, 20, 34

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000001111010000

Octal: 301720

Duodecimal: 49554

Hexadecimal: 183d0

Square: 9856518400

Square Root: 315.08728949292765

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) = (1/6)*n!*[xⁿ] (2 + sec(3·x) + tan(3·x) + 3·sec(x) + 3·tan(x)). A320957

Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 12 (most significant digit on right). A29505

A family of sequences converging to the exponential limit of sec + tan (A320956). Square array A(n, k) for n >= 0 and k >= 0, read by descending antidiagonals. A321400

a(n) = A000110(n) * A000111(n). The exponential limit of sec + tan. Row sums of A373428. A320956

2ⁿ-th palindromic number. A99280