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28545506358 = 234757584393
BaseRepresentation
bin11010100101011100…
…011101110000110110
32201200101101222012020
4122211130131300312
5431430122200413
621040313134010
72030245541415
oct324534356066
981611358166
1028545506358
1111119215476
1256479ba306
1328cbc46a85
14154b1cd47c
15b210bcc23
hex6a571dc36

28545506358 has 8 divisors (see below), whose sum is σ = 57091012728. Its totient is φ = 9515168784.

The previous prime is 28545506323. The next prime is 28545506369. The reversal of 28545506358 is 85360554582.

It is a happy number.

28545506358 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

28545506358 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28545506358.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2378792191 + ... + 2378792202.

It is an arithmetic number, because the mean of its divisors is an integer number (7136376591).

Almost surely, 228545506358 is an apocalyptic number.

28545506358 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28545506358 is a wasteful number, since it uses less digits than its factorization.

28545506358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4757584398.

The product of its (nonzero) digits is 5760000, while the sum is 51.

The spelling of 28545506358 in words is "twenty-eight billion, five hundred forty-five million, five hundred six thousand, three hundred fifty-eight".

Divisors: 1 2 3 6 4757584393 9515168786 14272753179 28545506358