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12727081316 = 2215649203321
BaseRepresentation
bin10111101101001011…
…11101100101100100
31012211222020201102002
423312211331211210
5202031113100231
65502521304432
7630250256225
oct136645754544
935758221362
1012727081316
115441118624
122572335118
13127a996561
1488a40524c
154e74e20cb
hex2f697d964

12727081316 has 12 divisors (see below), whose sum is σ = 22273925100. Its totient is φ = 6363102720.

The previous prime is 12727081309. The next prime is 12727081319. The reversal of 12727081316 is 61318072721.

It can be written as a sum of positive squares in 2 ways, for example, as 5763846400 + 6963234916 = 75920^2 + 83446^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12727081316.

It is not an unprimeable number, because it can be changed into a prime (12727081319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39065 + ... + 164256.

It is an arithmetic number, because the mean of its divisors is an integer number (1856160425).

Almost surely, 212727081316 is an apocalyptic number.

It is an amenable number.

12727081316 is a deficient number, since it is larger than the sum of its proper divisors (9546843784).

12727081316 is a wasteful number, since it uses less digits than its factorization.

12727081316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218974 (or 218972 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 12727081316 in words is "twelve billion, seven hundred twenty-seven million, eighty-one thousand, three hundred sixteen".

Divisors: 1 2 4 15649 31298 62596 203321 406642 813284 3181770329 6363540658 12727081316