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12782041249308 = 22331339971010687
BaseRepresentation
bin1011101000000000110100…
…0001110011011000011100
31200020221200102122210011120
42322000031001303120130
53133410110024434213
643103553320050540
72456320616652552
oct272001501633034
950227612583146
1012782041249308
114088919070381
1215252b3903a50
13719458b4c056
14322922bb3bd2
151727547a6423
hexba00d07361c

12782041249308 has 48 divisors (see below), whose sum is σ = 30787788079104. Its totient is φ = 4123113750720.

The previous prime is 12782041249279. The next prime is 12782041249333. The reversal of 12782041249308 is 80394214028721.

It is a happy number.

It is a super-2 number, since 2×127820412493082 (a number of 27 digits) contains 22 as substring.

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, 12141541 + ... + 13152227.

It is an arithmetic number, because the mean of its divisors is an integer number (641412251648).

Almost surely, 212782041249308 is an apocalyptic number.

It is an amenable number.

12782041249308 is an abundant number, since it is smaller than the sum of its proper divisors (18005746829796).

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

12782041249308 is a wasteful number, since it uses less digits than its factorization.

12782041249308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044722 (or 1044720 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 12782041249308 in words is "twelve trillion, seven hundred eighty-two billion, forty-one million, two hundred forty-nine thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 33997 67994 101991 135988 203982 407964 1010687 1053907 2021374 2107814 3032061 3161721 4042748 4215628 6064122 6323442 12128244 12646884 31331297 62662594 93993891 125325188 187987782 375975564 34360325939 68720651878 103080977817 137441303756 206161955634 412323911268 1065170104109 2130340208218 3195510312327 4260680416436 6391020624654 12782041249308