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28796530015 = 5113753266993
BaseRepresentation
bin11010110100011010…
…000010110101011111
32202022212202021220201
4122310122002311133
5432433402430030
621121241324331
72036414316001
oct326432026537
982285667821
1028796530015
1111237988240
1256b7a966a7
13293bc57396
141572694371
15b381552ca
hex6b4682d5f

28796530015 has 32 divisors (see below), whose sum is σ = 39446761536. Its totient is φ = 19992360960.

The previous prime is 28796530003. The next prime is 28796530033. The reversal of 28796530015 is 51003569782.

It is not a de Polignac number, because 28796530015 - 27 = 28796529887 is a prime.

It is a Duffinian number.

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 31 ways as a sum of consecutive naturals, for example, 25642 + ... + 241351.

It is an arithmetic number, because the mean of its divisors is an integer number (1232711298).

Almost surely, 228796530015 is an apocalyptic number.

28796530015 is a deficient number, since it is larger than the sum of its proper divisors (10650231521).

28796530015 is a wasteful number, since it uses less digits than its factorization.

28796530015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267099.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 28796530015 in words is "twenty-eight billion, seven hundred ninety-six million, five hundred thirty thousand, fifteen".

Divisors: 1 5 11 37 53 55 185 265 407 583 1961 2035 2915 9805 21571 107855 266993 1334965 2936923 9878741 14150629 14684615 49393705 70753145 108666151 155656919 523573273 543330755 778284595 2617866365 5759306003 28796530015