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55190542888 = 23131740130497
BaseRepresentation
bin110011011001100111…
…001101101000101000
312021110022202001220001
4303121213031220220
51401012234333023
641204300512344
73662446605565
oct633147155050
9167408661801
1055190542888
1121451693818
12a84324b6b4
135287224190
142957c3186c
1516803d86ad
hexcd99cda28

55190542888 has 32 divisors (see below), whose sum is σ = 111452501160. Its totient is φ = 25470259200.

The previous prime is 55190542861. The next prime is 55190542907. The reversal of 55190542888 is 88824509155.

55190542888 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 46605037924 + 8585504964 = 215882^2 + 92658^2 .

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, 1794456 + ... + 1824952.

Almost surely, 255190542888 is an apocalyptic number.

It is an amenable number.

55190542888 is an abundant number, since it is smaller than the sum of its proper divisors (56261958272).

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

55190542888 is a wasteful number, since it uses less digits than its factorization.

55190542888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47917 (or 47913 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 55.

The spelling of 55190542888 in words is "fifty-five billion, one hundred ninety million, five hundred forty-two thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 13 26 52 104 17401 30497 34802 60994 69604 121988 139208 226213 243976 396461 452426 792922 904852 1585844 1809704 3171688 530678297 1061356594 2122713188 4245426376 6898817861 13797635722 27595271444 55190542888