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57427707 = 379293827
BaseRepresentation
bin1101101100010…
…0011011111011
311000001122000010
43123010123323
5104200141312
65410513003
71265061501
oct333043373
9130048003
1057427707
112a464317
1217295763
13bb891bc
1478ac671
15509593c
hex36c46fb

57427707 has 16 divisors (see below), whose sum is σ = 77898240. Its totient is φ = 37625952.

The previous prime is 57427703. The next prime is 57427723. The reversal of 57427707 is 70772475.

It is not a de Polignac number, because 57427707 - 22 = 57427703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57427703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69028 + ... + 69854.

It is an arithmetic number, because the mean of its divisors is an integer number (4868640).

Almost surely, 257427707 is an apocalyptic number.

57427707 is a deficient number, since it is larger than the sum of its proper divisors (20470533).

57427707 is a wasteful number, since it uses less digits than its factorization.

57427707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202.

The product of its (nonzero) digits is 96040, while the sum is 39.

The square root of 57427707 is about 7578.1070855458. The cubic root of 57427707 is about 385.8103066253.

The spelling of 57427707 in words is "fifty-seven million, four hundred twenty-seven thousand, seven hundred seven".

Divisors: 1 3 79 237 293 827 879 2481 23147 65333 69441 195999 242311 726933 19142569 57427707