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55052370 = 2325611693
BaseRepresentation
bin1101001000000…
…0100001010010
310211120221122200
43102000201102
5103043133440
65243544030
71235636352
oct322004122
9124527580
1055052370
112909172a
121652b016
13b536c89
147450b62
154c76c30
hex3480852

55052370 has 24 divisors (see below), whose sum is σ = 143136396. Its totient is φ = 14680608.

The previous prime is 55052351. The next prime is 55052383. The reversal of 55052370 is 7325055.

It can be written as a sum of positive squares in 2 ways, for example, as 50083929 + 4968441 = 7077^2 + 2229^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305757 + ... + 305936.

Almost surely, 255052370 is an apocalyptic number.

55052370 is an abundant number, since it is smaller than the sum of its proper divisors (88084026).

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

55052370 is a wasteful number, since it uses less digits than its factorization.

55052370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611706 (or 611703 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 55052370 is about 7419.7284316880. The cubic root of 55052370 is about 380.4159111921.

It can be divided in two parts, 5505 and 2370, that added together give a triangular number (7875 = T125).

The spelling of 55052370 in words is "fifty-five million, fifty-two thousand, three hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 611693 1223386 1835079 3058465 3670158 5505237 6116930 9175395 11010474 18350790 27526185 55052370