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55928071 = 1632511367
BaseRepresentation
bin1101010101011…
…0010100000111
310220020102220001
43111112110013
5103304144241
65314422131
71246244413
oct325262407
9126212801
1055928071
112962a651
1216891947
13b782744
1475dbd43
154d9b431
hex3556507

55928071 has 8 divisors (see below), whose sum is σ = 56536704. Its totient is φ = 55323000.

The previous prime is 55928057. The next prime is 55928099. The reversal of 55928071 is 17082955.

55928071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55928071 - 219 = 55403783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55928071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55922071) 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 7 ways as a sum of consecutive naturals, for example, 40230 + ... + 41596.

It is an arithmetic number, because the mean of its divisors is an integer number (7067088).

Almost surely, 255928071 is an apocalyptic number.

55928071 is a deficient number, since it is larger than the sum of its proper divisors (608633).

55928071 is a wasteful number, since it uses less digits than its factorization.

55928071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 55928071 is about 7478.5072708395. The cubic root of 55928071 is about 382.4223625302.

The spelling of 55928071 in words is "fifty-five million, nine hundred twenty-eight thousand, seventy-one".

Divisors: 1 163 251 1367 40913 222821 343117 55928071