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12815264330 = 2511592517867
BaseRepresentation
bin10111110111101100…
…10110101001001010
31020002010011212202122
423323312112221022
5202221201424310
65515351331242
7632400643451
oct137366265112
936063155678
1012815264330
115486978850
122597980b22
13129303045b
14897ddbb98
15500110555
hex2fbd96a4a

12815264330 has 64 divisors (see below), whose sum is σ = 25696258560. Its totient is φ = 4562280000.

The previous prime is 12815264317. The next prime is 12815264333. The reversal of 12815264330 is 3346251821.

It is not an unprimeable number, because it can be changed into a prime (12815264333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1625057 + ... + 1632923.

It is an arithmetic number, because the mean of its divisors is an integer number (401504040).

Almost surely, 212815264330 is an apocalyptic number.

12815264330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12815264330 is an abundant number, since it is smaller than the sum of its proper divisors (12880994230).

12815264330 is a wasteful number, since it uses less digits than its factorization.

12815264330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 12815264330 in words is "twelve billion, eight hundred fifteen million, two hundred sixty-four thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 59 110 118 251 295 502 590 649 1255 1298 2510 2761 3245 5522 6490 7867 13805 14809 15734 27610 29618 39335 74045 78670 86537 148090 162899 173074 325798 432685 464153 814495 865370 928306 1628990 1974617 2320765 3949234 4641530 5105683 9873085 10211366 19746170 21720787 25528415 43441574 51056830 108603935 116502403 217207870 233004806 582512015 1165024030 1281526433 2563052866 6407632165 12815264330