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13312303311220 = 2252328939789807
BaseRepresentation
bin1100000110111000001100…
…0111000010100101110100
31202010122101022021112010221
43001232003013002211310
53221102044121424340
644151330540224124
72542532200061044
oct301560307024564
952118338245127
1013312303311220
1142727971938a1
1215b001b53b044
13757463738824
1434046717b724
1518143c02b44a
hexc1b831c2974

13312303311220 has 24 divisors (see below), whose sum is σ = 29171308126464. Its totient is φ = 5093403005856.

The previous prime is 13312303311217. The next prime is 13312303311253. The reversal of 13312303311220 is 2211330321331.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 14469894444 + ... + 14469895363.

It is an arithmetic number, because the mean of its divisors is an integer number (1215471171936).

Almost surely, 213312303311220 is an apocalyptic number.

13312303311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13312303311220 is an abundant number, since it is smaller than the sum of its proper divisors (15859004815244).

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

13312303311220 is a wasteful number, since it uses less digits than its factorization.

13312303311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28939789839 (or 28939789837 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13312303311220 its reverse (2211330321331), we get a palindrome (15523633632551).

The spelling of 13312303311220 in words is "thirteen trillion, three hundred twelve billion, three hundred three million, three hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 28939789807 57879579614 115759159228 144698949035 289397898070 578795796140 665615165561 1331230331122 2662460662244 3328075827805 6656151655610 13312303311220