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57029733 = 3240915493
BaseRepresentation
bin1101100110001…
…1010001100101
310222022102002100
43121203101211
5104044422413
65354202313
71261513305
oct331432145
9128272070
1057029733
112a212312
1217123399
13ba7a007
147807605
155017a73
hex3663465

57029733 has 12 divisors (see below), whose sum is σ = 82583020. Its totient is φ = 37924416.

The previous prime is 57029723. The next prime is 57029759. The reversal of 57029733 is 33792075.

It is a happy number.

57029733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26193924 + 30835809 = 5118^2 + 5553^2 .

It is not a de Polignac number, because 57029733 - 25 = 57029701 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 (57029723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4066 + ... + 11427.

Almost surely, 257029733 is an apocalyptic number.

It is an amenable number.

57029733 is a deficient number, since it is larger than the sum of its proper divisors (25553287).

57029733 is a wasteful number, since it uses less digits than its factorization.

57029733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15908 (or 15905 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 36.

The square root of 57029733 is about 7551.8032945781. The cubic root of 57029733 is about 384.9170181532.

It can be divided in two parts, 570 and 29733, that added together give a palindrome (30303).

The spelling of 57029733 in words is "fifty-seven million, twenty-nine thousand, seven hundred thirty-three".

Divisors: 1 3 9 409 1227 3681 15493 46479 139437 6336637 19009911 57029733