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13031012330 = 257377949261
BaseRepresentation
bin11000010001011010…
…10111011111101010
31020122011011000101022
430020231113133222
5203141414343310
65553015452442
7640630530410
oct141055273752
936564130338
1013031012330
115587737486
122638087122
1312c893c6ab
148b891d2b0
1551402aa55
hex308b577ea

13031012330 has 32 divisors (see below), whose sum is σ = 26814291840. Its totient is φ = 4466502720.

The previous prime is 13031012299. The next prime is 13031012353. The reversal of 13031012330 is 3321013031.

It is a super-2 number, since 2×130310123302 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13031012299 and 13031012308.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 239900 + ... + 289160.

It is an arithmetic number, because the mean of its divisors is an integer number (837946620).

Almost surely, 213031012330 is an apocalyptic number.

13031012330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031012330 is an abundant number, since it is smaller than the sum of its proper divisors (13783279510).

13031012330 is a wasteful number, since it uses less digits than its factorization.

13031012330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53054.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13031012330 its reverse (3321013031), we get a palindrome (16352025361).

The spelling of 13031012330 in words is "thirteen billion, thirty-one million, twelve thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 3779 7558 18895 26453 37790 49261 52906 98522 132265 246305 264530 344827 492610 689654 1724135 3448270 186157319 372314638 930786595 1303101233 1861573190 2606202466 6515506165 13031012330