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12120310110 = 235454988813
BaseRepresentation
bin10110100100110110…
…10100000101011110
31011021200111112210110
423102123110011132
5144310244410420
65322404150450
7606231636036
oct132233240536
934250445713
1012120310110
11515a665417
122423098426
1311b206993c
1482d9b88c6
154ae0d7ee0
hex2d26d415e

12120310110 has 32 divisors (see below), whose sum is σ = 29095466400. Its totient is φ = 3231335808.

The previous prime is 12120310109. The next prime is 12120310127. The reversal of 12120310110 is 1101302121.

12120310110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92064 + ... + 180876.

It is an arithmetic number, because the mean of its divisors is an integer number (909233325).

Almost surely, 212120310110 is an apocalyptic number.

12120310110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120310110 is an abundant number, since it is smaller than the sum of its proper divisors (16975156290).

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

12120310110 is a wasteful number, since it uses less digits than its factorization.

12120310110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93372.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12120310110 its reverse (1101302121), we get a palindrome (13221612231).

The spelling of 12120310110 in words is "twelve billion, one hundred twenty million, three hundred ten thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 4549 9098 13647 22745 27294 45490 68235 88813 136470 177626 266439 444065 532878 888130 1332195 2664390 404010337 808020674 1212031011 2020051685 2424062022 4040103370 6060155055 12120310110