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12886704620 = 2251711737643
BaseRepresentation
bin11000000000001101…
…11000000111101100
31020021002121102102022
430000012320013230
5202342444021440
65530422445312
7634226116256
oct140006700754
936232542368
1012886704620
115513232a09
1225b7893838
1312a4a8470a
148a36b6cd6
15506522cb5
hex3001b81ec

12886704620 has 24 divisors (see below), whose sum is σ = 27064379664. Its totient is φ = 5154243776.

The previous prime is 12886704617. The next prime is 12886704637. The reversal of 12886704620 is 2640768821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323519 + ... + 361161.

It is an arithmetic number, because the mean of its divisors is an integer number (1127682486).

Almost surely, 212886704620 is an apocalyptic number.

12886704620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12886704620 is an abundant number, since it is smaller than the sum of its proper divisors (14177675044).

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

12886704620 is a wasteful number, since it uses less digits than its factorization.

12886704620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54769 (or 54767 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 12886704620 in words is "twelve billion, eight hundred eighty-six million, seven hundred four thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 17117 34234 37643 68468 75286 85585 150572 171170 188215 342340 376430 752860 644335231 1288670462 2577340924 3221676155 6443352310 12886704620