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52401789 = 3311533329
BaseRepresentation
bin1100011111100…
…1011001111101
310122121021202000
43013321121331
5101403324124
65111052513
71204256616
oct307713175
9118537660
1052401789
1127641270
1215671139
13ab1969b
146d60c0d
1549016c9
hex31f967d

52401789 has 32 divisors (see below), whose sum is σ = 86313600. Its totient is φ = 31150080.

The previous prime is 52401779. The next prime is 52401793. The reversal of 52401789 is 98710425.

It is not a de Polignac number, because 52401789 - 24 = 52401773 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52401709) 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 31 ways as a sum of consecutive naturals, for example, 14077 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (2697300).

Almost surely, 252401789 is an apocalyptic number.

It is an amenable number.

52401789 is a deficient number, since it is larger than the sum of its proper divisors (33911811).

52401789 is a wasteful number, since it uses less digits than its factorization.

52401789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402 (or 3396 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 52401789 is about 7238.9079977577. The cubic root of 52401789 is about 374.2099848382.

The spelling of 52401789 in words is "fifty-two million, four hundred one thousand, seven hundred eighty-nine".

Divisors: 1 3 9 11 27 33 53 99 159 297 477 583 1431 1749 3329 5247 9987 15741 29961 36619 89883 109857 176437 329571 529311 988713 1587933 1940807 4763799 5822421 17467263 52401789