Search a number
-
+
57130919321 = 73179797791
BaseRepresentation
bin110101001101010001…
…001010010110011001
312110110112220101221212
4311031101022112121
51414001003404241
642125013512505
74061520542000
oct651521122631
9173415811855
1057130919321
1122257a07303
12b0a5042735
135506223a08
142a9d809c37
15174591ebeb
hexd4d44a599

57130919321 has 16 divisors (see below), whose sum is σ = 70544102400. Its totient is φ = 46088804160.

The previous prime is 57130919303. The next prime is 57130919323. The reversal of 57130919321 is 12391903175.

It is not a de Polignac number, because 57130919321 - 210 = 57130918297 is a prime.

It is a super-2 number, since 2×571309193212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57130919323) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4893065 + ... + 4904726.

It is an arithmetic number, because the mean of its divisors is an integer number (4409006400).

Almost surely, 257130919321 is an apocalyptic number.

It is an amenable number.

57130919321 is a deficient number, since it is larger than the sum of its proper divisors (13413183079).

57130919321 is an equidigital number, since it uses as much as digits as its factorization.

57130919321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797829 (or 9797815 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 41.

The spelling of 57130919321 in words is "fifty-seven billion, one hundred thirty million, nine hundred nineteen thousand, three hundred twenty-one".

Divisors: 1 7 17 49 119 343 833 5831 9797791 68584537 166562447 480091759 1165937129 3360642313 8161559903 57130919321