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5287558 = 22643779
BaseRepresentation
bin10100001010111010000110
3100221122011111
4110022322012
52323200213
6305155234
762641423
oct24127206
910848144
105287558
112a91691
12192bb1a
131131943
149b8d4a
156e6a3d
hex50ae86

5287558 has 4 divisors (see below), whose sum is σ = 7931340. Its totient is φ = 2643778.

The previous prime is 5287543. The next prime is 5287571. The reversal of 5287558 is 8557825.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 5287558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321888 + ... + 1321891.

It is an arithmetic number, because the mean of its divisors is an integer number (1982835).

Almost surely, 25287558 is an apocalyptic number.

5287558 is a deficient number, since it is larger than the sum of its proper divisors (2643782).

5287558 is a wasteful number, since it uses less digits than its factorization.

5287558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643781.

The product of its digits is 112000, while the sum is 40.

The square root of 5287558 is about 2299.4690691549. The cubic root of 5287558 is about 174.2148005613.

The spelling of 5287558 in words is "five million, two hundred eighty-seven thousand, five hundred fifty-eight".

Divisors: 1 2 2643779 5287558