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57510993 = 319170331
BaseRepresentation
bin1101101101100…
…0110001010001
311000012212020210
43123120301101
5104210322433
65412354333
71265556351
oct333306121
9130185223
1057510993
112a510951
12173159a9
13bbb8097
1478d0b61
1550b0463
hex36d8c51

57510993 has 4 divisors (see below), whose sum is σ = 76681328. Its totient is φ = 38340660.

The previous prime is 57510961. The next prime is 57510997. The reversal of 57510993 is 39901575.

57510993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 57510993 - 25 = 57510961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57510997) 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, 9585163 + ... + 9585168.

It is an arithmetic number, because the mean of its divisors is an integer number (19170332).

Almost surely, 257510993 is an apocalyptic number.

It is an amenable number.

57510993 is a deficient number, since it is larger than the sum of its proper divisors (19170335).

57510993 is a wasteful number, since it uses less digits than its factorization.

57510993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19170334.

The product of its (nonzero) digits is 42525, while the sum is 39.

The square root of 57510993 is about 7583.6002663643. The cubic root of 57510993 is about 385.9967269537.

The spelling of 57510993 in words is "fifty-seven million, five hundred ten thousand, nine hundred ninety-three".

Divisors: 1 3 19170331 57510993