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12730599168 = 28372368043
BaseRepresentation
bin10111101101100110…
…11000011100000000
31012212012212102222220
423312303120130000
5202033013133133
65503124531040
7630322210320
oct136663303400
935765772886
1012730599168
115443100641
122573550a80
13127b628821
1488aa7d280
154e79895b3
hex2f6cd8700

12730599168 has 72 divisors (see below), whose sum is σ = 38722255488. Its totient is φ = 3637312512.

The previous prime is 12730599163. The next prime is 12730599281. The reversal of 12730599168 is 86199503721.

It is a self number, because there is not a number n which added to its sum of digits gives 12730599168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730599163) 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, 1178646 + ... + 1189397.

It is an arithmetic number, because the mean of its divisors is an integer number (537809104).

Almost surely, 212730599168 is an apocalyptic number.

It is an amenable number.

12730599168 is an abundant number, since it is smaller than the sum of its proper divisors (25991656320).

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

12730599168 is an equidigital number, since it uses as much as digits as its factorization.

12730599168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368069 (or 2368055 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 12730599168 in words is "twelve billion, seven hundred thirty million, five hundred ninety-nine thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 256 336 384 448 672 768 896 1344 1792 2688 5376 2368043 4736086 7104129 9472172 14208258 16576301 18944344 28416516 33152602 37888688 49728903 56833032 66305204 75777376 99457806 113666064 132610408 151554752 198915612 227332128 265220816 303109504 397831224 454664256 530441632 606219008 795662448 909328512 1060883264 1591324896 1818657024 2121766528 3182649792 4243533056 6365299584 12730599168