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55286048 = 251990931
BaseRepresentation
bin1101001011100…
…1100100100000
310212000211012102
43102321210200
5103123123143
65252545532
71240631546
oct322714440
9125024172
1055286048
1129231254
12166222a8
13b5b944c
1474b1d96
154cc10b8
hex34b9920

55286048 has 24 divisors (see below), whose sum is σ = 114574320. Its totient is φ = 26187840.

The previous prime is 55286047. The next prime is 55286059. The reversal of 55286048 is 84068255.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (55286047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44858 + ... + 46073.

It is an arithmetic number, because the mean of its divisors is an integer number (4773930).

Almost surely, 255286048 is an apocalyptic number.

It is an amenable number.

55286048 is an abundant number, since it is smaller than the sum of its proper divisors (59288272).

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

55286048 is a wasteful number, since it uses less digits than its factorization.

55286048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90960 (or 90952 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 55286048 is about 7435.4588291510. The cubic root of 55286048 is about 380.9533954656.

The spelling of 55286048 in words is "fifty-five million, two hundred eighty-six thousand, forty-eight".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 90931 181862 363724 727448 1454896 1727689 2909792 3455378 6910756 13821512 27643024 55286048