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55996728 = 2332333197
BaseRepresentation
bin1101010110011…
…1000100111000
310220100221001220
43111213010320
5103313343403
65320112040
71246651524
oct325470470
9126327056
1055996728
1129677197
1216905620
13b7a7a78
147618d84
154db1953
hex3567138

55996728 has 16 divisors (see below), whose sum is σ = 139991880. Its totient is φ = 18665568.

The previous prime is 55996711. The next prime is 55996729. The reversal of 55996728 is 82769955.

It is a happy number.

55996728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55996729) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1166575 + ... + 1166622.

Almost surely, 255996728 is an apocalyptic number.

It is an amenable number.

55996728 is an abundant number, since it is smaller than the sum of its proper divisors (83995152).

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

55996728 is a wasteful number, since it uses less digits than its factorization.

55996728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333206 (or 2333202 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 55996728 is about 7483.0961506585. The cubic root of 55996728 is about 382.5787850869.

The spelling of 55996728 in words is "fifty-five million, nine hundred ninety-six thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 24 2333197 4666394 6999591 9332788 13999182 18665576 27998364 55996728