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13201214565 = 3571111879629
BaseRepresentation
bin11000100101101101…
…01000110001100101
31021002000102011221210
430102312220301211
5204014002331230
610021535502033
7645065321010
oct142266506145
937060364853
1013201214565
115664817990
122685087919
131324c92a86
148d3386377
15523e4aeb0
hex312da8c65

13201214565 has 64 divisors (see below), whose sum is σ = 26358773760. Its totient is φ = 5481027840.

The previous prime is 13201214539. The next prime is 13201214569. The reversal of 13201214565 is 56541210231.

It is not a de Polignac number, because 13201214565 - 26 = 13201214501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201214569) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1366171 + ... + 1375799.

It is an arithmetic number, because the mean of its divisors is an integer number (411855840).

Almost surely, 213201214565 is an apocalyptic number.

13201214565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13201214565 is a deficient number, since it is larger than the sum of its proper divisors (13157559195).

13201214565 is a wasteful number, since it uses less digits than its factorization.

13201214565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10842.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 13201214565 its reverse (56541210231), we get a palindrome (69742424796).

The spelling of 13201214565 in words is "thirteen billion, two hundred one million, two hundred fourteen thousand, five hundred sixty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 165 231 385 1155 1187 3561 5935 8309 9629 13057 17805 24927 28887 39171 41545 48145 65285 67403 91399 105919 124635 144435 195855 202209 274197 317757 337015 456995 529595 741433 1011045 1370985 1588785 2224299 3707165 11121495 11429623 34288869 57148115 80007361 125725853 171444345 240022083 377177559 400036805 628629265 880080971 1200110415 1885887795 2640242913 4400404855 13201214565