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12130015235 = 5137117315193
BaseRepresentation
bin10110100110000000…
…10101100000000011
31011022100202121201112
423103000111200003
5144320240441420
65323352153535
7606410266622
oct132300254003
934270677645
1012130015235
115165093a88
1224263988ab
1311b4087210
14830dc36b9
154aeda38c5
hex2d3015803

12130015235 has 32 divisors (see below), whose sum is σ = 15989436288. Its totient is φ = 8779760640.

The previous prime is 12130015229. The next prime is 12130015273. The reversal of 12130015235 is 53251003121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-12130015235 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12130015235.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 790799 + ... + 805991.

It is an arithmetic number, because the mean of its divisors is an integer number (499669884).

Almost surely, 212130015235 is an apocalyptic number.

12130015235 is a deficient number, since it is larger than the sum of its proper divisors (3859421053).

12130015235 is a wasteful number, since it uses less digits than its factorization.

12130015235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15455.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 12130015235 its reverse (53251003121), we get a palindrome (65381018356).

The spelling of 12130015235 in words is "twelve billion, one hundred thirty million, fifteen thousand, two hundred thirty-five".

Divisors: 1 5 13 65 71 173 355 865 923 2249 4615 11245 12283 15193 61415 75965 159679 197509 798395 987545 1078703 2628389 5393515 13141945 14023139 34169057 70115695 170845285 186615619 933078095 2426003047 12130015235