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12515001316 = 22172361233563
BaseRepresentation
bin10111010011111001…
…11100001111100100
31012022012011221100021
423221330330033210
5201112320020231
65425503524524
7622063520206
oct135174741744
935265157307
1012515001316
1153424347a4
1225132b9744
131245a6ca2c
1486a19a776
154d3a9d811
hex2e9f3c3e4

12515001316 has 96 divisors (see below), whose sum is σ = 24743916288. Its totient is φ = 5507420160.

The previous prime is 12515001269. The next prime is 12515001319. The reversal of 12515001316 is 61310051521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12515001319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22228851 + ... + 22229413.

It is an arithmetic number, because the mean of its divisors is an integer number (257749128).

Almost surely, 212515001316 is an apocalyptic number.

It is an amenable number.

12515001316 is a deficient number, since it is larger than the sum of its proper divisors (12228914972).

12515001316 is a wasteful number, since it uses less digits than its factorization.

12515001316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 12515001316 its reverse (61310051521), we get a palindrome (73825052837).

The spelling of 12515001316 in words is "twelve billion, five hundred fifteen million, one thousand, three hundred sixteen".

Divisors: 1 2 4 17 23 34 46 61 68 92 122 233 244 391 466 563 782 932 1037 1126 1403 1564 2074 2252 2806 3961 4148 5359 5612 7922 9571 10718 12949 14213 15844 19142 21436 23851 25898 28426 34343 38284 47702 51796 56852 68686 91103 95404 131179 137372 182206 220133 241621 262358 326899 364412 440266 483242 524716 583831 653798 789889 880532 966484 1167662 1307596 1579778 2230043 2335324 3017117 3159556 4460086 5557283 6034234 8001919 8920172 11114566 12068468 13428113 16003838 22229132 26856226 32007676 51290989 53712452 102581978 136032623 184044137 205163956 272065246 368088274 544130492 736176548 3128750329 6257500658 12515001316