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52001887 = 73151609
BaseRepresentation
bin1100011001011…
…1110001011111
310121211222011211
43012113301133
5101303030022
65054325251
71201003000
oct306276137
9117758154
1052001887
1127398873
12154b9827
13aa09662
146c991a7
154872e77
hex3197c5f

52001887 has 8 divisors (see below), whose sum is σ = 60644000. Its totient is φ = 44572752.

The previous prime is 52001869. The next prime is 52001941. The reversal of 52001887 is 78810025.

It is not a de Polignac number, because 52001887 - 219 = 51477599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52001837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75462 + ... + 76147.

It is an arithmetic number, because the mean of its divisors is an integer number (7580500).

Almost surely, 252001887 is an apocalyptic number.

52001887 is a deficient number, since it is larger than the sum of its proper divisors (8642113).

52001887 is an equidigital number, since it uses as much as digits as its factorization.

52001887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151630 (or 151616 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 52001887 is about 7211.2333896498. The cubic root of 52001887 is about 373.2556305300.

The spelling of 52001887 in words is "fifty-two million, one thousand, eight hundred eighty-seven".

Divisors: 1 7 49 343 151609 1061263 7428841 52001887