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528683287 = 11389123553
BaseRepresentation
bin11111100000110…
…001000100010111
31100211210220010111
4133200301010113
52040320331122
6124243303451
716046506456
oct3740610427
91324726114
10528683287
11251478640
1212907ab87
13856b8962
1450300b9d
1531631d77
hex1f831117

528683287 has 8 divisors (see below), whose sum is σ = 578232720. Its totient is φ = 479381760.

The previous prime is 528683273. The next prime is 528683299. The reversal of 528683287 is 782386825.

It is a happy number.

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

It is not a de Polignac number, because 528683287 - 27 = 528683159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528683287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528683257) 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, 57498 + ... + 66055.

It is an arithmetic number, because the mean of its divisors is an integer number (72279090).

Almost surely, 2528683287 is an apocalyptic number.

528683287 is a deficient number, since it is larger than the sum of its proper divisors (49549433).

528683287 is a wasteful number, since it uses less digits than its factorization.

528683287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123953.

The product of its digits is 1290240, while the sum is 49.

The square root of 528683287 is about 22993.1139039496. The cubic root of 528683287 is about 808.5965062049.

The spelling of 528683287 in words is "five hundred twenty-eight million, six hundred eighty-three thousand, two hundred eighty-seven".

Divisors: 1 11 389 4279 123553 1359083 48062117 528683287