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12664625200 = 245234699127
BaseRepresentation
bin10111100101101111…
…01101100000110000
31012200121201121201121
423302313231200300
5201414121001300
65452410512024
7625561352353
oct136267554060
935617647647
1012664625200
11540993a3a7
122555435614
13126aa69686
14881dc829a
154e1ca681a
hex2f2ded830

12664625200 has 60 divisors (see below), whose sum is σ = 30438867760. Its totient is φ = 5063834880.

The previous prime is 12664625191. The next prime is 12664625203. The reversal of 12664625200 is 252646621.

It is not an unprimeable number, because it can be changed into a prime (12664625203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1383037 + ... + 1392163.

Almost surely, 212664625200 is an apocalyptic number.

12664625200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12664625200 is an abundant number, since it is smaller than the sum of its proper divisors (17774242560).

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

12664625200 is a wasteful number, since it uses less digits than its factorization.

12664625200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12614 (or 12603 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 12664625200 in words is "twelve billion, six hundred sixty-four million, six hundred twenty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 3469 6938 9127 13876 17345 18254 27752 34690 36508 45635 55504 69380 73016 86725 91270 138760 146032 173450 182540 228175 277520 346900 365080 456350 693800 730160 912700 1387600 1825400 3650800 31661563 63323126 126646252 158307815 253292504 316615630 506585008 633231260 791539075 1266462520 1583078150 2532925040 3166156300 6332312600 12664625200