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55086804148 = 221715718772749
BaseRepresentation
bin110011010011011011…
…011110110010110100
312021012002112121002111
4303103123132302310
51400304210213043
641150113220404
73660050052355
oct632333366264
9167162477074
1055086804148
11213a9079322
12a814561704
13526b8a19cc
142948149d2c
15167624609d
hexcd36decb4

55086804148 has 48 divisors (see below), whose sum is σ = 102814866000. Its totient is φ = 25734998016.

The previous prime is 55086804137. The next prime is 55086804187. The reversal of 55086804148 is 84140868055.

It can be written as a sum of positive squares in 8 ways, for example, as 684973584 + 54401830564 = 26172^2 + 233242^2 .

It is a super-2 number, since 2×550868041482 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20037478 + ... + 20040226.

It is an arithmetic number, because the mean of its divisors is an integer number (2141976375).

Almost surely, 255086804148 is an apocalyptic number.

It is an amenable number.

55086804148 is a deficient number, since it is larger than the sum of its proper divisors (47728061852).

55086804148 is a wasteful number, since it uses less digits than its factorization.

55086804148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804 (or 4802 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 55086804148 in words is "fifty-five billion, eighty-six million, eight hundred four thousand, one hundred forty-eight".

Divisors: 1 2 4 17 34 68 157 314 628 1877 2669 2749 3754 5338 5498 7508 10676 10996 31909 46733 63818 93466 127636 186932 294689 431593 589378 863186 1178756 1726372 5009713 5159873 7337081 10019426 10319746 14674162 20038852 20639492 29348324 87717841 175435682 350871364 810100061 1620200122 3240400244 13771701037 27543402074 55086804148