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52668285 = 35191811021
BaseRepresentation
bin1100100011101…
…0011101111101
310200002211022020
43020322131331
5101440341120
65120510353
71206446565
oct310723575
9120084266
1052668285
112780350a
121577b3b9
13abb0a87
146dcdda5
154955640
hex323a77d

52668285 has 32 divisors (see below), whose sum is σ = 89281920. Its totient is φ = 26438400.

The previous prime is 52668277. The next prime is 52668299. The reversal of 52668285 is 58286625.

It is not a de Polignac number, because 52668285 - 23 = 52668277 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51075 + ... + 52095.

It is an arithmetic number, because the mean of its divisors is an integer number (2790060).

Almost surely, 252668285 is an apocalyptic number.

It is an amenable number.

52668285 is a deficient number, since it is larger than the sum of its proper divisors (36613635).

52668285 is a wasteful number, since it uses less digits than its factorization.

52668285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229.

The product of its digits is 230400, while the sum is 42.

The square root of 52668285 is about 7257.2918502703. The cubic root of 52668285 is about 374.8432767322.

The spelling of 52668285 in words is "fifty-two million, six hundred sixty-eight thousand, two hundred eighty-five".

Divisors: 1 3 5 15 19 57 95 181 285 543 905 1021 2715 3063 3439 5105 10317 15315 17195 19399 51585 58197 96995 184801 290985 554403 924005 2772015 3511219 10533657 17556095 52668285