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28748002865796 = 22321538351911567
BaseRepresentation
bin1101000100101011010100…
…11111111011001010000100
310202210021121202012112210100
412202111222133323022010
512232001402213201141
6141050352235324100
76024655211342544
oct642255237731204
9122707552175710
1028748002865796
119183a61182485
12328367bbb0630
131306c04401a16
147155a71c1324
1534cc052500b6
hex1a256a7fb284

28748002865796 has 36 divisors (see below), whose sum is σ = 72673288152192. Its totient is φ = 9582044498544.

The previous prime is 28748002865779. The next prime is 28748002865797. The reversal of 28748002865796 is 69756820084782.

28748002865796 is a `hidden beast` number, since 2 + 8 + 7 + 48 + 0 + 0 + 2 + 8 + 6 + 579 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (28748002865797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25401996 + ... + 26509571.

It is an arithmetic number, because the mean of its divisors is an integer number (2018702448672).

Almost surely, 228748002865796 is an apocalyptic number.

It is an amenable number.

28748002865796 is an abundant number, since it is smaller than the sum of its proper divisors (43925285286396).

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

28748002865796 is a wasteful number, since it uses less digits than its factorization.

28748002865796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51926960 (or 51926955 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 72.

The spelling of 28748002865796 in words is "twenty-eight trillion, seven hundred forty-eight billion, two million, eight hundred sixty-five thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 15383 30766 46149 61532 92298 138447 184596 276894 553788 51911567 103823134 155734701 207646268 311469402 467204103 622938804 934408206 1868816412 798555635161 1597111270322 2395666905483 3194222540644 4791333810966 7187000716449 9582667621932 14374001432898 28748002865796