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12513890027500 = 225423920943749
BaseRepresentation
bin1011011000011001110111…
…1110000100011111101100
31122022022112111211022200221
42312012131332010133230
53120011421321340000
642340445100501124
72431045601122021
oct266063576043754
948268474738627
1012513890027500
113a95124758574
1214a133854a7a4
136ca093423834
1431396584d548
1516a7ad1b261a
hexb619df847ec

12513890027500 has 60 divisors (see below), whose sum is σ = 27479875500000. Its totient is φ = 4984612024000.

The previous prime is 12513890027447. The next prime is 12513890027501. The reversal of 12513890027500 is 572009831521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12513890027501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9874375 + ... + 11069374.

It is an arithmetic number, because the mean of its divisors is an integer number (457997925000).

Almost surely, 212513890027500 is an apocalyptic number.

12513890027500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12513890027500 is an abundant number, since it is smaller than the sum of its proper divisors (14965985472500).

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

12513890027500 is a wasteful number, since it uses less digits than its factorization.

12513890027500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20944012 (or 20943995 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 12513890027500 in words is "twelve trillion, five hundred thirteen billion, eight hundred ninety million, twenty-seven thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 239 250 478 500 625 956 1195 1250 2390 2500 4780 5975 11950 23900 29875 59750 119500 149375 298750 597500 20943749 41887498 83774996 104718745 209437490 418874980 523593725 1047187450 2094374900 2617968625 5005556011 5235937250 10011112022 10471874500 13089843125 20022224044 25027780055 26179686250 50055560110 52359372500 100111120220 125138900275 250277800550 500555601100 625694501375 1251389002750 2502778005500 3128472506875 6256945013750 12513890027500