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13112112102 = 2373197315173
BaseRepresentation
bin11000011011000101…
…01111001111100110
31020211210202022100120
430031202233033212
5203323200041402
610005034022410
7642634054035
oct141542571746
936753668316
1013112112102
115619499991
12265b277a06
13130c69651b
148c55d071c
1551b1ea3bc
hex30d8af3e6

13112112102 has 32 divisors (see below), whose sum is σ = 26598686688. Its totient is φ = 4308362496.

The previous prime is 13112112071. The next prime is 13112112103. The reversal of 13112112102 is 20121121131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112112103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856588 + ... + 871760.

It is an arithmetic number, because the mean of its divisors is an integer number (831208959).

Almost surely, 213112112102 is an apocalyptic number.

13112112102 is an abundant number, since it is smaller than the sum of its proper divisors (13486574586).

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

13112112102 is a wasteful number, since it uses less digits than its factorization.

13112112102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 13112112102 its reverse (20121121131), we get a palindrome (33233233233).

The spelling of 13112112102 in words is "thirteen billion, one hundred twelve million, one hundred twelve thousand, one hundred two".

Divisors: 1 2 3 6 73 146 219 438 1973 3946 5919 11838 15173 30346 45519 91038 144029 288058 432087 864174 1107629 2215258 3322887 6645774 29936329 59872658 89808987 179617974 2185352017 4370704034 6556056051 13112112102