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28675511187301 = 1137621111343713
BaseRepresentation
bin1101000010100100010011…
…01010000111011101100101
310202112100111200022201121001
412201102021222013131211
512224304421330443201
6140553203055153301
76016510620263236
oct641221152073545
9122470450281531
1028675511187301
119156241550490
12327160a815831
1313001209ac7c4
14711c8b6c308d
1534adb1009301
hex1a1489a87765

28675511187301 has 16 divisors (see below), whose sum is σ = 32133021023808. Its totient is φ = 25360002547200.

The previous prime is 28675511187221. The next prime is 28675511187311. The reversal of 28675511187301 is 10378111557682.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28675511187301 - 27 = 28675511187173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28675511187311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3143980 + ... + 8199733.

It is an arithmetic number, because the mean of its divisors is an integer number (2008313813988).

Almost surely, 228675511187301 is an apocalyptic number.

It is an amenable number.

28675511187301 is a deficient number, since it is larger than the sum of its proper divisors (3457509836507).

28675511187301 is a wasteful number, since it uses less digits than its factorization.

28675511187301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11349972.

The product of its (nonzero) digits is 2822400, while the sum is 55.

The spelling of 28675511187301 in words is "twenty-eight trillion, six hundred seventy-five billion, five hundred eleven million, one hundred eighty-seven thousand, three hundred one".

Divisors: 1 11 37 407 6211 68321 229807 2527877 11343713 124780843 419717381 4616891191 70455801443 775013815873 2606864653391 28675511187301