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13402243311 = 343472210497
BaseRepresentation
bin11000111101101011…
…00000000011101111
31021121000200111112220
430132311200003233
5204421433241221
610053520330423
7653056121442
oct143665400357
937530614486
1013402243311
115758242846
122720473a13
13135781a3b2
14911d55659
1553690a0c6
hex31ed600ef

13402243311 has 16 divisors (see below), whose sum is σ = 18674287104. Its totient is φ = 8541356544.

The previous prime is 13402243273. The next prime is 13402243319. The reversal of 13402243311 is 11334220431.

It is a happy number.

It is not a de Polignac number, because 13402243311 - 214 = 13402226927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402243319) 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, 1099186 + ... + 1111311.

It is an arithmetic number, because the mean of its divisors is an integer number (1167142944).

Almost surely, 213402243311 is an apocalyptic number.

13402243311 is a deficient number, since it is larger than the sum of its proper divisors (5272043793).

13402243311 is a wasteful number, since it uses less digits than its factorization.

13402243311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210590.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13402243311 its reverse (11334220431), we get a palindrome (24736463742).

The spelling of 13402243311 in words is "thirteen billion, four hundred two million, two hundred forty-three thousand, three hundred eleven".

Divisors: 1 3 43 47 129 141 2021 6063 2210497 6631491 95051371 103893359 285154113 311680077 4467414437 13402243311