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57640048 = 244776649
BaseRepresentation
bin1101101111100…
…0010001110000
311000110102021121
43123320101300
5104223440143
65415232024
71266634534
oct333702160
9130412247
1057640048
112a599904
1217378614
13bc31a4b
147925bc4
1550d87ed
hex36f8470

57640048 has 20 divisors (see below), whose sum is σ = 114055200. Its totient is φ = 28206464.

The previous prime is 57640027. The next prime is 57640061. The reversal of 57640048 is 84004675.

57640048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 57639995 and 57640022.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 37573 + ... + 39076.

It is an arithmetic number, because the mean of its divisors is an integer number (5702760).

Almost surely, 257640048 is an apocalyptic number.

It is an amenable number.

57640048 is a deficient number, since it is larger than the sum of its proper divisors (56415152).

57640048 is a wasteful number, since it uses less digits than its factorization.

57640048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76704 (or 76698 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 57640048 is about 7592.1043196205. The cubic root of 57640048 is about 386.2852375486.

The spelling of 57640048 in words is "fifty-seven million, six hundred forty thousand, forty-eight".

Divisors: 1 2 4 8 16 47 94 188 376 752 76649 153298 306596 613192 1226384 3602503 7205006 14410012 28820024 57640048