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13213242340 = 2255926941627
BaseRepresentation
bin11000100111001001…
…00001001111100100
31021002212001020221221
430103210201033210
5204030042223330
610023045350124
7645302464264
oct142344411744
937085036857
1013213242340
1156705925a1
122689108344
1313276145bc
148d4bd77a4
15525024b7a
hex3139213e4

13213242340 has 48 divisors (see below), whose sum is σ = 28323691200. Its totient is φ = 5176276352.

The previous prime is 13213242337. The next prime is 13213242347. The reversal of 13213242340 is 4324231231.

It is not an unprimeable number, because it can be changed into a prime (13213242347) 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, 296607 + ... + 338233.

It is an arithmetic number, because the mean of its divisors is an integer number (590076900).

Almost surely, 213213242340 is an apocalyptic number.

13213242340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213242340 is an abundant number, since it is smaller than the sum of its proper divisors (15110448860).

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

13213242340 is a wasteful number, since it uses less digits than its factorization.

13213242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41964 (or 41962 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13213242340 its reverse (4324231231), we get a palindrome (17537473571).

The spelling of 13213242340 in words is "thirteen billion, two hundred thirteen million, two hundred forty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 59 118 236 269 295 538 590 1076 1180 1345 2690 5380 15871 31742 41627 63484 79355 83254 158710 166508 208135 317420 416270 832540 2455993 4911986 9823972 11197663 12279965 22395326 24559930 44790652 49119860 55988315 111976630 223953260 660662117 1321324234 2642648468 3303310585 6606621170 13213242340