Properties of the Number 40087

Forty Thousand Eighty-Seven

Basics

Value: 40086 → 40087 → 40088

Parity: odd

Prime: Yes

Previous Prime: 40063

Next Prime: 40093

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 40087

Divisors: 1, 40087

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1001110010010111

Octal: 116227

Duodecimal: 1B247

Hexadecimal: 9c97

Square: 1606967569

Square Root: 200.2173818628143

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

Numbers n such that prime(n) == -1 (mod n). A45924

Number of partitions of n containing a clique of size 3. A183560

a(n) = 529n² - 312n + 46. A156841

Prime values of π(n) that divide n. A256394

Numbers k that divide prime(k)+1 or prime(k)-1. A78931

Primes p such that continued fraction of (1 + sqrt(p))/2 has period 12 : primes in A146336. A146357

4-nonnesting permutations. A193935

Prime numbers that precede and follow consecutive balanced primes. A374507

Numbers k such that prime(k + 1) == 7 (mod k). A105421

a(n) is the smallest number m such that prime(m) = n·m - 1, or 0 if no such m exists. A108511