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52911791 = 2412911
BaseRepresentation
bin1100100111010…
…1111010101111
310200120012022222
43021311322233
5102021134131
65130025555
71211512532
oct311657257
9120505288
1052911791
112795a459
12158782bb
13ac6786a
147054a19
1549a287b
hex3275eaf

52911791 has 6 divisors (see below), whose sum is σ = 53190576. Its totient is φ = 52634400.

The previous prime is 52911773. The next prime is 52911797. The reversal of 52911791 is 19711925.

It is not a de Polignac number, because 52911791 - 218 = 52649647 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 (52911797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57626 + ... + 58536.

It is an arithmetic number, because the mean of its divisors is an integer number (8865096).

Almost surely, 252911791 is an apocalyptic number.

52911791 is a deficient number, since it is larger than the sum of its proper divisors (278785).

52911791 is an frugal number, since it uses more digits than its factorization.

52911791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393 (or 1152 counting only the distinct ones).

The product of its digits is 5670, while the sum is 35.

The square root of 52911791 is about 7274.0491474831. The cubic root of 52911791 is about 375.4200708951.

The spelling of 52911791 in words is "fifty-two million, nine hundred eleven thousand, seven hundred ninety-one".

Divisors: 1 241 911 58081 219551 52911791