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57657652 = 22131108801
BaseRepresentation
bin1101101111110…
…0100100110100
311000111022102121
43123330210310
5104230021102
65415445324
71300040053
oct333744464
9130438377
1057657652
112a601058
1217386844
13bc39a70
14792c39a
1550ddb37
hex36fc934

57657652 has 12 divisors (see below), whose sum is σ = 108662596. Its totient is φ = 26611200.

The previous prime is 57657637. The next prime is 57657653. The reversal of 57657652 is 25675675.

It can be written as a sum of positive squares in 2 ways, for example, as 12418576 + 45239076 = 3524^2 + 6726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57657599 and 57657608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57657653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 554349 + ... + 554452.

Almost surely, 257657652 is an apocalyptic number.

57657652 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57657652 is a deficient number, since it is larger than the sum of its proper divisors (51004944).

57657652 is a wasteful number, since it uses less digits than its factorization.

57657652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108818 (or 1108816 counting only the distinct ones).

The product of its digits is 441000, while the sum is 43.

The square root of 57657652 is about 7593.2635934755. The cubic root of 57657652 is about 386.3245590123.

The spelling of 57657652 in words is "fifty-seven million, six hundred fifty-seven thousand, six hundred fifty-two".

Divisors: 1 2 4 13 26 52 1108801 2217602 4435204 14414413 28828826 57657652