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28584412790 = 257936182801
BaseRepresentation
bin11010100111110000…
…111000011001110110
32201210002121121210012
4122213300320121312
5432020102202130
621044223100222
72031230333303
oct324760703166
981702547705
1028584412790
111113917944a
125658a41672
13290701992b
14155243a0aa
15b24705995
hex6a7c38676

28584412790 has 16 divisors (see below), whose sum is σ = 52103234880. Its totient is φ = 11289033600.

The previous prime is 28584412783. The next prime is 28584412849. The reversal of 28584412790 is 9721448582.

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 7 ways as a sum of consecutive naturals, for example, 18090611 + ... + 18092190.

It is an arithmetic number, because the mean of its divisors is an integer number (3256452180).

Almost surely, 228584412790 is an apocalyptic number.

28584412790 is a deficient number, since it is larger than the sum of its proper divisors (23518822090).

28584412790 is a wasteful number, since it uses less digits than its factorization.

28584412790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36182887.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 28584412790 in words is "twenty-eight billion, five hundred eighty-four million, four hundred twelve thousand, seven hundred ninety".

Divisors: 1 2 5 10 79 158 395 790 36182801 72365602 180914005 361828010 2858441279 5716882558 14292206395 28584412790