Properties of the Number 8045

Eight Thousand Forty-Five

Basics

Value: 8044 → 8045 → 8046

Parity: odd

Prime: No

Previous Prime: 8039

Next Prime: 8053

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 1609

Divisors: 1, 5, 1609, 8045

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1111101101101

Octal: 17555

Duodecimal: 47A5

Hexadecimal: 1f6d

Square: 64722025

Square Root: 89.69392398596462

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

Number of admissible sequences of order j; related to 3x+1 problem and Wagon's constant. A100982

Expansion of ∏_k>=2 1/(1 - x^k)^ω(k), where ω(k) is the number of distinct primes dividing k (A001221). A293548

Number of numerical semigroups of genus n; conjecturally also the number of power sum bases for symmetric functions in n variables. A7323

Length of Collatz dropping time patterns in A186008. A186009

Numbers k such that binomial(4k, k) + 1 is prime. A125241

Numbers n such that n^k+(n+1)^k is prime for k = 1, 2, 4. A128780

Positive numbers y such that y² is of the form x²+(x+89)² with integer x. A160055

Numbers k such that 2·k+1, 3·k+2 and 4·k+3 are primes. A126955

Numerator of the frequency of the n-th dropping time in the Collatz iteration. A186107

Semiprimes (A001358) whose digit reversal is a powerful(1) number (A001694). A115688