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28101165246 = 2347112252779
BaseRepresentation
bin11010001010111101…
…011100000010111110
32200112102022002210000
4122022331130002332
5430022344241441
620524241255130
72013241651320
oct321275340276
980472262700
1028101165246
1110a10414410
1255430344a6
13285ab7ba3b
1415081a5610
15ae709b2b6
hex68af5c0be

28101165246 has 80 divisors (see below), whose sum is σ = 78504877440. Its totient is φ = 7299000720.

The previous prime is 28101165229. The next prime is 28101165269. The reversal of 28101165246 is 64256110182.

It is a happy number.

28101165246 is a `hidden beast` number, since 2 + 8 + 10 + 116 + 524 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28101165246.

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 39 ways as a sum of consecutive naturals, for example, 1113916 + ... + 1138863.

It is an arithmetic number, because the mean of its divisors is an integer number (981310968).

Almost surely, 228101165246 is an apocalyptic number.

28101165246 is an abundant number, since it is smaller than the sum of its proper divisors (50403712194).

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

28101165246 is a wasteful number, since it uses less digits than its factorization.

28101165246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252811 (or 2252802 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 28101165246 in words is "twenty-eight billion, one hundred one million, one hundred sixty-five thousand, two hundred forty-six".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 27 33 42 54 63 66 77 81 99 126 154 162 189 198 231 297 378 462 567 594 693 891 1134 1386 1782 2079 4158 6237 12474 2252779 4505558 6758337 13516674 15769453 20275011 24780569 31538906 40550022 47308359 49561138 60825033 74341707 94616718 121650066 141925077 148683414 173463983 182475099 223025121 283850154 346927966 364950198 425775231 446050242 520391949 669075363 851550462 1040783898 1277325693 1338150726 1561175847 2007226089 2554651386 3122351694 4014452178 4683527541 9367055082 14050582623 28101165246