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12481925430 = 23513231391519
BaseRepresentation
bin10111001111111101…
…10001000100110110
31012012212221111202110
423213332301010312
5201030333103210
65422322551450
7621212421102
oct134776610466
935185844673
1012481925430
1153257a3357
122504208586
13123bc5b9c0
14865a2a902
154d0c18420
hex2e7fb1136

12481925430 has 64 divisors (see below), whose sum is σ = 33663651840. Its totient is φ = 2938886016.

The previous prime is 12481925429. The next prime is 12481925441. The reversal of 12481925430 is 3452918421.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 686790 + ... + 704729.

It is an arithmetic number, because the mean of its divisors is an integer number (525994560).

Almost surely, 212481925430 is an apocalyptic number.

12481925430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12481925430 is an abundant number, since it is smaller than the sum of its proper divisors (21181726410).

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

12481925430 is a wasteful number, since it uses less digits than its factorization.

12481925430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391565.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 12481925430 in words is "twelve billion, four hundred eighty-one million, nine hundred twenty-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 23 26 30 39 46 65 69 78 115 130 138 195 230 299 345 390 598 690 897 1495 1794 2990 4485 8970 1391519 2783038 4174557 6957595 8349114 13915190 18089747 20872785 32004937 36179494 41745570 54269241 64009874 90448735 96014811 108538482 160024685 180897470 192029622 271346205 320049370 416064181 480074055 542692410 832128362 960148110 1248192543 2080320905 2496385086 4160641810 6240962715 12481925430