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55030068 = 22321528613
BaseRepresentation
bin1101000111101…
…1000100110100
310211112211001200
43101323010310
5103041430233
65243252500
71235514342
oct321730464
9124484050
1055030068
11290769a5
121651a130
13b529a92
147446992
154c70313
hex347b134

55030068 has 18 divisors (see below), whose sum is σ = 139103874. Its totient is φ = 18343344.

The previous prime is 55030051. The next prime is 55030163. The reversal of 55030068 is 86003055.

55030068 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 only one way, i.e., 53319204 + 1710864 = 7302^2 + 1308^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 764271 + ... + 764342.

It is an arithmetic number, because the mean of its divisors is an integer number (7727993).

Almost surely, 255030068 is an apocalyptic number.

It is an amenable number.

55030068 is an abundant number, since it is smaller than the sum of its proper divisors (84073806).

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

55030068 is a wasteful number, since it uses less digits than its factorization.

55030068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528623 (or 1528618 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 55030068 is about 7418.2253942570. The cubic root of 55030068 is about 380.3645347691.

The spelling of 55030068 in words is "fifty-five million, thirty thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1528613 3057226 4585839 6114452 9171678 13757517 18343356 27515034 55030068