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55871202228 = 22361212935851
BaseRepresentation
bin110100000010001011…
…101110001110110100
312100012202112010222020
4310002023232032310
51403411011432403
641400013433140
74015353245262
oct640213561664
9170182463866
1055871202228
11217709231a6
12a9b319b7b0
13536525129a
1429c03b3432
1516c003a453
hexd022ee3b4

55871202228 has 48 divisors (see below), whose sum is σ = 132569223360. Its totient is φ = 18309312000.

The previous prime is 55871202223. The next prime is 55871202239. The reversal of 55871202228 is 82220217855.

It is a self number, because there is not a number n which added to its sum of digits gives 55871202228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55871202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540503 + ... + 1576353.

It is an arithmetic number, because the mean of its divisors is an integer number (2761858820).

Almost surely, 255871202228 is an apocalyptic number.

It is an amenable number.

55871202228 is an abundant number, since it is smaller than the sum of its proper divisors (76698021132).

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

55871202228 is a wasteful number, since it uses less digits than its factorization.

55871202228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38048 (or 38046 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 55871202228 in words is "fifty-five billion, eight hundred seventy-one million, two hundred two thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 2129 4258 6387 8516 12774 25548 35851 71702 107553 129869 143404 215106 259738 389607 430212 519476 779214 1558428 2186911 4373822 6560733 8747644 13121466 26242932 76326779 152653558 228980337 305307116 457960674 915921348 4655933519 9311867038 13967800557 18623734076 27935601114 55871202228