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57352397020 = 22510926308439
BaseRepresentation
bin110101011010011110…
…000010000011011100
312111000222122122020121
4311122132002003130
51414424203201040
642203004524324
74100150221402
oct653236020334
9174028578217
1057352397020
1122360a29826
12b1472506a4
13554008abc9
142ac0dbd472
15175a0bcc4a
hexd5a7820dc

57352397020 has 24 divisors (see below), whose sum is σ = 121544992800. Its totient is φ = 22730490432.

The previous prime is 57352396999. The next prime is 57352397057. The reversal of 57352397020 is 2079325375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13152040 + ... + 13156399.

It is an arithmetic number, because the mean of its divisors is an integer number (5064374700).

Almost surely, 257352397020 is an apocalyptic number.

It is an amenable number.

57352397020 is an abundant number, since it is smaller than the sum of its proper divisors (64192595780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57352397020 is a wasteful number, since it uses less digits than its factorization.

57352397020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26308557 (or 26308555 counting only the distinct ones).

The product of its (nonzero) digits is 396900, while the sum is 43.

The spelling of 57352397020 in words is "fifty-seven billion, three hundred fifty-two million, three hundred ninety-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 26308439 52616878 105233756 131542195 263084390 526168780 2867619851 5735239702 11470479404 14338099255 28676198510 57352397020