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57454726830 = 23511318193637
BaseRepresentation
bin110101100000100100…
…011000111010101110
312111022010012112100120
4311200210120322232
51420131402224310
642221102105410
74102532056134
oct654044307256
9174263175316
1057454726830
1122403771716
12b17557b266
135558338ca7
142ad0819754
151764082b70
hexd60918eae

57454726830 has 64 divisors (see below), whose sum is σ = 139881688128. Its totient is φ = 15101614080.

The previous prime is 57454726801. The next prime is 57454726843. The reversal of 57454726830 is 3862745475.

It is a happy number.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 566772 + ... + 660408.

It is an arithmetic number, because the mean of its divisors is an integer number (2185651377).

Almost surely, 257454726830 is an apocalyptic number.

57454726830 is an abundant number, since it is smaller than the sum of its proper divisors (82426961298).

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

57454726830 is a wasteful number, since it uses less digits than its factorization.

57454726830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93941.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 57454726830 in words is "fifty-seven billion, four hundred fifty-four million, seven hundred twenty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 113 181 226 339 362 543 565 678 905 1086 1130 1695 1810 2715 3390 5430 20453 40906 61359 93637 102265 122718 187274 204530 280911 306795 468185 561822 613590 936370 1404555 2809110 10580981 16948297 21161962 31742943 33896594 50844891 52904905 63485886 84741485 101689782 105809810 158714715 169482970 254224455 317429430 508448910 1915157561 3830315122 5745472683 9575787805 11490945366 19151575610 28727363415 57454726830