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57388401393 = 331981598151
BaseRepresentation
bin110101011100100111…
…011000001011110001
312111010111101211221220
4311130213120023301
51420012412321033
642210332335253
74101065235411
oct653447301361
9174114354856
1057388401393
112237a290404
12b157314529
135547685b7b
142ac5ab2641
15175d330bb3
hexd5c9d82f1

57388401393 has 8 divisors (see below), whose sum is σ = 76520389056. Its totient is φ = 38257674000.

The previous prime is 57388401379. The next prime is 57388401403. The reversal of 57388401393 is 39310488375.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57388401393 - 24 = 57388401377 is a prime.

It is a super-2 number, since 2×573884013932 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57388401313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203133 + ... + 395018.

It is an arithmetic number, because the mean of its divisors is an integer number (9565048632).

Almost surely, 257388401393 is an apocalyptic number.

It is an amenable number.

57388401393 is a deficient number, since it is larger than the sum of its proper divisors (19131987663).

57388401393 is a wasteful number, since it uses less digits than its factorization.

57388401393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630135.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 57388401393 in words is "fifty-seven billion, three hundred eighty-eight million, four hundred one thousand, three hundred ninety-three".

Divisors: 1 3 31981 95943 598151 1794453 19129467131 57388401393