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13201321290 = 235607724949
BaseRepresentation
bin11000100101101110…
…00010110101001010
31021002000121121100120
430102313002311022
5204014014240130
610021542044110
7645066244113
oct142267026512
937060547316
1013201321290
115664890093
122685119636
131324ccc521
148d33b320a
15523e6c910
hex312dc2d4a

13201321290 has 32 divisors (see below), whose sum is σ = 31735411200. Its totient is φ = 3514547904.

The previous prime is 13201321267. The next prime is 13201321291. The reversal of 13201321290 is 9212310231.

It is a self number, because there is not a number n which added to its sum of digits gives 13201321290.

It is not an unprimeable number, because it can be changed into a prime (13201321291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344265 + ... + 380684.

It is an arithmetic number, because the mean of its divisors is an integer number (991731600).

Almost surely, 213201321290 is an apocalyptic number.

13201321290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13201321290 is an abundant number, since it is smaller than the sum of its proper divisors (18534089910).

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

13201321290 is a wasteful number, since it uses less digits than its factorization.

13201321290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725566.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 13201321290 in words is "thirteen billion, two hundred one million, three hundred twenty-one thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 607 1214 1821 3035 3642 6070 9105 18210 724949 1449898 2174847 3624745 4349694 7249490 10874235 21748470 440044043 880088086 1320132129 2200220215 2640264258 4400440430 6600660645 13201321290