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55100060660 = 22520117136949
BaseRepresentation
bin110011010100001110…
…000011001111110100
312021020000111002121102
4303110032003033310
51400321103420120
641151305305232
73660300534161
oct632416031764
9167200432542
1055100060660
1121405603117
12a818a95218
1352715638b8
142949bdb068
1516774b3d75
hexcd43833f4

55100060660 has 24 divisors (see below), whose sum is σ = 115716724200. Its totient is φ = 22038767744.

The previous prime is 55100060569. The next prime is 55100060677. The reversal of 55100060660 is 6606000155.

55100060660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14533266916 + 40566793744 = 120554^2 + 201412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333866 + ... + 470814.

It is an arithmetic number, because the mean of its divisors is an integer number (4821530175).

Almost surely, 255100060660 is an apocalyptic number.

It is an amenable number.

55100060660 is an abundant number, since it is smaller than the sum of its proper divisors (60616663540).

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

55100060660 is a wasteful number, since it uses less digits than its factorization.

55100060660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157075 (or 157073 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 55100060660 in words is "fifty-five billion, one hundred million, sixty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 20117 40234 80468 100585 136949 201170 273898 402340 547796 684745 1369490 2738980 2755003033 5510006066 11020012132 13775015165 27550030330 55100060660