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57770044 = 2241934469
BaseRepresentation
bin1101110001100…
…0000000111100
311000201000121021
43130120000330
5104242120134
65422113524
71301015533
oct334300074
9130630537
1057770044
112a678542
121741b8a4
13bc78c77
14795b31a
1551120b4
hex371803c

57770044 has 12 divisors (see below), whose sum is σ = 101341800. Its totient is φ = 28815248.

The previous prime is 57770021. The next prime is 57770077. The reversal of 57770044 is 44007775.

It is a junction number, because it is equal to n+sod(n) for n = 57769991 and 57770009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15559 + ... + 18910.

It is an arithmetic number, because the mean of its divisors is an integer number (8445150).

Almost surely, 257770044 is an apocalyptic number.

It is an amenable number.

57770044 is a deficient number, since it is larger than the sum of its proper divisors (43571756).

57770044 is a wasteful number, since it uses less digits than its factorization.

57770044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34892 (or 34890 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 57770044 is about 7600.6607607497. The cubic root of 57770044 is about 386.5754167685.

The spelling of 57770044 in words is "fifty-seven million, seven hundred seventy thousand, forty-four".

Divisors: 1 2 4 419 838 1676 34469 68938 137876 14442511 28885022 57770044