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13212323201 = 7211533171459
BaseRepresentation
bin11000100111000010…
…00000110110000001
31021002210022120010202
430103201000312001
5204024323320301
610023013534545
7645261615500
oct142341006601
937083276122
1013212323201
115670014a80
122688944455
13132738212c
148d4a38837
15524de266b
hex313840d81

13212323201 has 48 divisors (see below), whose sum is σ = 17148646080. Its totient is φ = 10062299520.

The previous prime is 13212323093. The next prime is 13212323203. The reversal of 13212323201 is 10232321231.

It is not a de Polignac number, because 13212323201 - 222 = 13208128897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13212323203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9055010 + ... + 9056468.

It is an arithmetic number, because the mean of its divisors is an integer number (357263460).

Almost surely, 213212323201 is an apocalyptic number.

13212323201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13212323201 is a deficient number, since it is larger than the sum of its proper divisors (3936322879).

13212323201 is a wasteful number, since it uses less digits than its factorization.

13212323201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1847 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13212323201 its reverse (10232321231), we get a palindrome (23444644432).

The spelling of 13212323201 in words is "thirteen billion, two hundred twelve million, three hundred twenty-three thousand, two hundred one".

Divisors: 1 7 11 49 53 77 317 371 539 583 1459 2219 2597 3487 4081 10213 15533 16049 16801 24409 28567 71491 77327 112343 117607 170863 184811 462503 541289 786401 823249 850597 1293677 3237521 3789023 5087533 5954179 9055739 22662647 24512659 35612731 41679253 171588613 249289117 269639249 1201120291 1887474743 13212323201