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12856270293824 = 26597943097881
BaseRepresentation
bin1011101100010101010101…
…1011001000101101000000
31200112001021120200221111112
42323011111123020231000
53141114120143400244
643202031122102452
72464556235302216
oct273052533105500
950461246627445
1012856270293824
11410734a467161
12153776aaaaa28
137234584a14b9
14326365322cb6
1517464b2d239e
hexbb1556c8b40

12856270293824 has 56 divisors (see below), whose sum is σ = 26272468867200. Its totient is φ = 6239193891840.

The previous prime is 12856270293773. The next prime is 12856270293851. The reversal of 12856270293824 is 42839207265821.

It is a super-2 number, since 2×128562702938242 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21250637 + ... + 21847244.

It is a 1-persistent number, because it is pandigital, but 2⋅12856270293824 = 25712540587648 is not.

Almost surely, 212856270293824 is an apocalyptic number.

It is an amenable number.

12856270293824 is an abundant number, since it is smaller than the sum of its proper divisors (13416198573376).

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

12856270293824 is an equidigital number, since it uses as much as digits as its factorization.

12856270293824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43098031 (or 43098021 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 12856270293824 in words is "twelve trillion, eight hundred fifty-six billion, two hundred seventy million, two hundred ninety-three thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 32 59 64 79 118 158 236 316 472 632 944 1264 1888 2528 3776 4661 5056 9322 18644 37288 74576 149152 298304 43097881 86195762 172391524 344783048 689566096 1379132192 2542774979 2758264384 3404732599 5085549958 6809465198 10171099916 13618930396 20342199832 27237860792 40684399664 54475721584 81368799328 108951443168 162737598656 200879223341 217902886336 401758446682 803516893364 1607033786728 3214067573456 6428135146912 12856270293824