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13105202105 = 53184549691
BaseRepresentation
bin11000011010010000…
…11000001110111001
31020211022202020121202
430031020120032321
5203314412431410
610004225543545
7642521244212
oct141510301671
936738666552
1013105202105
1156155aa346
122658aa4bb5
13130b117278
148c4712409
1551a7d2ca5
hex30d2183b9

13105202105 has 8 divisors (see below), whose sum is σ = 16233540864. Its totient is φ = 10145962800.

The previous prime is 13105202093. The next prime is 13105202137. The reversal of 13105202105 is 50120250131.

It is a happy number.

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

It is not a de Polignac number, because 13105202105 - 212 = 13105198009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42274691 + ... + 42275000.

It is an arithmetic number, because the mean of its divisors is an integer number (2029192608).

Almost surely, 213105202105 is an apocalyptic number.

It is an amenable number.

13105202105 is a deficient number, since it is larger than the sum of its proper divisors (3128338759).

13105202105 is an equidigital number, since it uses as much as digits as its factorization.

13105202105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84549727.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 13105202105 its reverse (50120250131), we get a palindrome (63225452236).

The spelling of 13105202105 in words is "thirteen billion, one hundred five million, two hundred two thousand, one hundred five".

Divisors: 1 5 31 155 84549691 422748455 2621040421 13105202105