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52135580 = 2257372397
BaseRepresentation
bin1100011011100…
…0011010011100
310122002202120102
43012320122130
5101321314310
65101240232
71202100530
oct306703234
9118082512
1052135580
112747a262
1215563078
13aa55473
146cd1bc0
15489c8a5
hex31b869c

52135580 has 24 divisors (see below), whose sum is σ = 125125728. Its totient is φ = 17875008.

The previous prime is 52135571. The next prime is 52135597. The reversal of 52135580 is 8553125.

52135580 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 an unprimeable number.

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, 186059 + ... + 186338.

It is an arithmetic number, because the mean of its divisors is an integer number (5213572).

Almost surely, 252135580 is an apocalyptic number.

It is an amenable number.

52135580 is an abundant number, since it is smaller than the sum of its proper divisors (72990148).

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

52135580 is a wasteful number, since it uses less digits than its factorization.

52135580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372413 (or 372411 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 52135580 is about 7220.4972127964. The cubic root of 52135580 is about 373.5752276599.

The spelling of 52135580 in words is "fifty-two million, one hundred thirty-five thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 372397 744794 1489588 1861985 2606779 3723970 5213558 7447940 10427116 13033895 26067790 52135580