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13662235389 = 3111669248057
BaseRepresentation
bin11001011100101010…
…10010101011111101
31022021010220110122010
430232111102223331
5210440013013024
610135405041433
7662364041025
oct145625225375
938233813563
1013662235389
115880a80730
122793556279
13139964ab6a
149386b2a85
1554e664b29
hex32e552afd

13662235389 has 16 divisors (see below), whose sum is σ = 19884329280. Its totient is φ = 8275148160.

The previous prime is 13662235343. The next prime is 13662235397. The reversal of 13662235389 is 98353226631.

It is not a de Polignac number, because 13662235389 - 27 = 13662235261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13662235189) 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, 68952 + ... + 179105.

It is an arithmetic number, because the mean of its divisors is an integer number (1242770580).

Almost surely, 213662235389 is an apocalyptic number.

It is an amenable number.

13662235389 is a deficient number, since it is larger than the sum of its proper divisors (6222093891).

13662235389 is a wasteful number, since it uses less digits than its factorization.

13662235389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249740.

The product of its digits is 1399680, while the sum is 48.

The spelling of 13662235389 in words is "thirteen billion, six hundred sixty-two million, two hundred thirty-five thousand, three hundred eighty-nine".

Divisors: 1 3 11 33 1669 5007 18359 55077 248057 744171 2728627 8185881 414007133 1242021399 4554078463 13662235389