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55282660 = 2252764133
BaseRepresentation
bin1101001011100…
…0101111100100
310212000122112221
43102320233210
5103123021120
65252522124
71240615636
oct322705744
9125018487
1055282660
1129229754
1216620344
13b5b7a44
1474b0a56
154cc00aa
hex34b8be4

55282660 has 12 divisors (see below), whose sum is σ = 116093628. Its totient is φ = 22113056.

The previous prime is 55282631. The next prime is 55282673. The reversal of 55282660 is 6628255.

It can be written as a sum of positive squares in 2 ways, for example, as 8168164 + 47114496 = 2858^2 + 6864^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1382047 + ... + 1382086.

It is an arithmetic number, because the mean of its divisors is an integer number (9674469).

Almost surely, 255282660 is an apocalyptic number.

It is an amenable number.

55282660 is an abundant number, since it is smaller than the sum of its proper divisors (60810968).

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

55282660 is a wasteful number, since it uses less digits than its factorization.

55282660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764142 (or 2764140 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 55282660 is about 7435.2309984290. The cubic root of 55282660 is about 380.9456135355.

The spelling of 55282660 in words is "fifty-five million, two hundred eighty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2764133 5528266 11056532 13820665 27641330 55282660