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13011220343 = 118913290317
BaseRepresentation
bin11000001111000011…
…10111011101110111
31020120202220110212202
430013201313131313
5203121333022333
65551031335115
7640300356002
oct140741673567
936522813782
1013011220343
115577549470
12263152149b
1312c47ccb64
148b604a539
1551241b5e8
hex307877777

13011220343 has 8 divisors (see below), whose sum is σ = 14353543440. Its totient is φ = 11695478080.

The previous prime is 13011220309. The next prime is 13011220361. The reversal of 13011220343 is 34302211031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13011220343 - 26 = 13011220279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011220363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6644180 + ... + 6646137.

It is an arithmetic number, because the mean of its divisors is an integer number (1794192930).

Almost surely, 213011220343 is an apocalyptic number.

13011220343 is a deficient number, since it is larger than the sum of its proper divisors (1342323097).

13011220343 is a wasteful number, since it uses less digits than its factorization.

13011220343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13290417.

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

Adding to 13011220343 its reverse (34302211031), we get a palindrome (47313431374).

The spelling of 13011220343 in words is "thirteen billion, eleven million, two hundred twenty thousand, three hundred forty-three".

Divisors: 1 11 89 979 13290317 146193487 1182838213 13011220343