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12525664120 = 2351973225769
BaseRepresentation
bin10111010101001011…
…00111011101111000
31012022221020122221221
423222211213131320
5201123032222440
65430524241424
7622253250124
oct135245473570
935287218857
1012525664120
115348457932
1225169a0274
131248034198
1486b774584
154d49a7d4a
hex2ea967778

12525664120 has 64 divisors (see below), whose sum is σ = 30072564000. Its totient is φ = 4681525248.

The previous prime is 12525664087. The next prime is 12525664121. The reversal of 12525664120 is 2146652521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525664121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57405 + ... + 168364.

Almost surely, 212525664120 is an apocalyptic number.

12525664120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12525664120 is an abundant number, since it is smaller than the sum of its proper divisors (17546899880).

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

12525664120 is a wasteful number, since it uses less digits than its factorization.

12525664120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225872 (or 225868 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 12525664120 in words is "twelve billion, five hundred twenty-five million, six hundred sixty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 73 76 95 146 152 190 292 365 380 584 730 760 1387 1460 2774 2920 5548 6935 11096 13870 27740 55480 225769 451538 903076 1128845 1806152 2257690 4289611 4515380 8579222 9030760 16481137 17158444 21448055 32962274 34316888 42896110 65924548 82405685 85792220 131849096 164811370 171584440 313141603 329622740 626283206 659245480 1252566412 1565708015 2505132824 3131416030 6262832060 12525664120