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12648121164212 = 226217508610309
BaseRepresentation
bin1011100000001101111011…
…0001001110000110110100
31122210011000022101120201212
42320003132301032012310
53124211323004223322
642522244443540552
72443540143011642
oct270033661160664
948704008346655
1012648121164212
1140370467302a6
12150335a22a758
13709935a86551
1431a25ac38192
1516e0177060e2
hexb80dec4e1b4

12648121164212 has 12 divisors (see below), whose sum is σ = 22137772353060. Its totient is φ = 6323043349056.

The previous prime is 12648121164193. The next prime is 12648121164241. The reversal of 12648121164212 is 21246112184621.

It can be written as a sum of positive squares in 2 ways, for example, as 8484252375076 + 4163868789136 = 2912774^2 + 2040556^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12648121164212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254280287 + ... + 254330022.

It is an arithmetic number, because the mean of its divisors is an integer number (1844814362755).

Almost surely, 212648121164212 is an apocalyptic number.

It is an amenable number.

12648121164212 is a deficient number, since it is larger than the sum of its proper divisors (9489651188848).

12648121164212 is a wasteful number, since it uses less digits than its factorization.

12648121164212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508616530 (or 508616528 counting only the distinct ones).

The product of its digits is 73728, while the sum is 41.

The spelling of 12648121164212 in words is "twelve trillion, six hundred forty-eight billion, one hundred twenty-one million, one hundred sixty-four thousand, two hundred twelve".

Divisors: 1 2 4 6217 12434 24868 508610309 1017220618 2034441236 3162030291053 6324060582106 12648121164212