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5218287 = 37124499
BaseRepresentation
bin10011111001111111101111
3100211010010220
4103321333233
52313441122
6303502423
762232444
oct23717757
910733126
105218287
112a44638
1218b7a13
131109259
1499b9cb
156d125c
hex4f9fef

5218287 has 8 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 3429720.

The previous prime is 5218277. The next prime is 5218307. The reversal of 5218287 is 7828125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5218287 - 24 = 5218271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5218207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12037 + ... + 12462.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 25218287 is an apocalyptic number.

5218287 is a deficient number, since it is larger than the sum of its proper divisors (1837713).

5218287 is a wasteful number, since it uses less digits than its factorization.

5218287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24573.

The product of its digits is 8960, while the sum is 33.

The square root of 5218287 is about 2284.3570211331. The cubic root of 5218287 is about 173.4506721105.

The spelling of 5218287 in words is "five million, two hundred eighteen thousand, two hundred eighty-seven".

Divisors: 1 3 71 213 24499 73497 1739429 5218287