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52257693 = 391119121
BaseRepresentation
bin1100011101011…
…0001110011101
310122022222002010
43013112032131
5101334221233
65104021433
71203116535
oct307261635
9118288063
1052257693
1127552a84
1215601879
13aa98c17
146d244c5
1548c3b63
hex31d639d

52257693 has 8 divisors (see below), whose sum is σ = 69757056. Its totient is φ = 34798400.

The previous prime is 52257671. The next prime is 52257697. The reversal of 52257693 is 39675225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52257693 - 28 = 52257437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52257697) 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, 6828 + ... + 12293.

It is an arithmetic number, because the mean of its divisors is an integer number (8719632).

Almost surely, 252257693 is an apocalyptic number.

It is an amenable number.

52257693 is a deficient number, since it is larger than the sum of its proper divisors (17499363).

52257693 is a wasteful number, since it uses less digits than its factorization.

52257693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20035.

The product of its digits is 113400, while the sum is 39.

The square root of 52257693 is about 7228.9482637518. The cubic root of 52257693 is about 373.8666653686.

The spelling of 52257693 in words is "fifty-two million, two hundred fifty-seven thousand, six hundred ninety-three".

Divisors: 1 3 911 2733 19121 57363 17419231 52257693