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57561148 = 2219972313
BaseRepresentation
bin1101101110010…
…1000000111100
311000022102001101
43123211000330
5104213424043
65413422444
71266155521
oct333450074
9130272041
1057561148
112a5455a7
121733aa24
13bc04b68
147905148
1550c024d
hex36e503c

57561148 has 12 divisors (see below), whose sum is σ = 101239600. Its totient is φ = 28635552.

The previous prime is 57561139. The next prime is 57561149. The reversal of 57561148 is 84116575.

57561148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57561149) 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 3 ways as a sum of consecutive naturals, for example, 35361 + ... + 36952.

Almost surely, 257561148 is an apocalyptic number.

It is an amenable number.

57561148 is a deficient number, since it is larger than the sum of its proper divisors (43678452).

57561148 is a wasteful number, since it uses less digits than its factorization.

57561148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72516 (or 72514 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 57561148 is about 7586.9063523942. The cubic root of 57561148 is about 386.1089028453.

The spelling of 57561148 in words is "fifty-seven million, five hundred sixty-one thousand, one hundred forty-eight".

Divisors: 1 2 4 199 398 796 72313 144626 289252 14390287 28780574 57561148