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12130032105 = 325487155339
BaseRepresentation
bin10110100110000000…
…11001100111101001
31011022100210110212100
423103000121213221
5144320242011410
65323352404013
7606410400042
oct132300314751
934270713770
1012130032105
1151650a5724
1224263a6609
1311b4091ab9
14830dc98c9
154aeda88c0
hex2d30199e9

12130032105 has 24 divisors (see below), whose sum is σ = 21030085440. Its totient is φ = 6467905440.

The previous prime is 12130032097. The next prime is 12130032127. The reversal of 12130032105 is 50123003121.

It is not a de Polignac number, because 12130032105 - 23 = 12130032097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191526 + ... + 246864.

It is an arithmetic number, because the mean of its divisors is an integer number (876253560).

Almost surely, 212130032105 is an apocalyptic number.

12130032105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12130032105 is a deficient number, since it is larger than the sum of its proper divisors (8900053335).

12130032105 is a wasteful number, since it uses less digits than its factorization.

12130032105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60221 (or 60218 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 12130032105 its reverse (50123003121), we get a palindrome (62253035226).

The spelling of 12130032105 in words is "twelve billion, one hundred thirty million, thirty-two thousand, one hundred five".

Divisors: 1 3 5 9 15 45 4871 14613 24355 43839 55339 73065 166017 219195 276695 498051 830085 2490255 269556269 808668807 1347781345 2426006421 4043344035 12130032105