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12825398940 = 22351019209771
BaseRepresentation
bin10111111000111010…
…00000111010011100
31020002211020202211120
423330131000322130
5202231300231230
65520352450540
7632553043434
oct137435007234
936084222746
1012825398940
115491670062
12259b249a50
13129516b373
148994b92c4
15500e63310
hex2fc740e9c

12825398940 has 48 divisors (see below), whose sum is σ = 35946529920. Its totient is φ = 3416733760.

The previous prime is 12825398921. The next prime is 12825398953. The reversal of 12825398940 is 4989352821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43746 + ... + 166025.

It is an arithmetic number, because the mean of its divisors is an integer number (748886040).

Almost surely, 212825398940 is an apocalyptic number.

12825398940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12825398940 is an abundant number, since it is smaller than the sum of its proper divisors (23121130980).

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

12825398940 is a wasteful number, since it uses less digits than its factorization.

12825398940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210802 (or 210800 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 12825398940 in words is "twelve billion, eight hundred twenty-five million, three hundred ninety-eight thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1019 2038 3057 4076 5095 6114 10190 12228 15285 20380 30570 61140 209771 419542 629313 839084 1048855 1258626 2097710 2517252 3146565 4195420 6293130 12586260 213756649 427513298 641269947 855026596 1068783245 1282539894 2137566490 2565079788 3206349735 4275132980 6412699470 12825398940