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1212214313413 = 2879421053947
BaseRepresentation
bin10001101000111101100…
…110101000000111000101
311021212221022002112001201
4101220331212220013011
5124330103331012123
62324514503422501
7153402541440145
oct21507546500705
94255838075051
101212214313413
11428108417594
12176b28154a31
138a407c787ac
14429587b2925
15217ec1915ad
hex11a3d9a81c5

1212214313413 has 4 divisors (see below), whose sum is σ = 1212635370240. Its totient is φ = 1211793256588.

The previous prime is 1212214313411. The next prime is 1212214313459. The reversal of 1212214313413 is 3143134122121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1212214313413 - 21 = 1212214313411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212214313411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210524095 + ... + 210529852.

It is an arithmetic number, because the mean of its divisors is an integer number (303158842560).

Almost surely, 21212214313413 is an apocalyptic number.

It is an amenable number.

1212214313413 is a deficient number, since it is larger than the sum of its proper divisors (421056827).

1212214313413 is an equidigital number, since it uses as much as digits as its factorization.

1212214313413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421056826.

The product of its digits is 3456, while the sum is 28.

Adding to 1212214313413 its reverse (3143134122121), we get a palindrome (4355348435534).

The spelling of 1212214313413 in words is "one trillion, two hundred twelve billion, two hundred fourteen million, three hundred thirteen thousand, four hundred thirteen".

Divisors: 1 2879 421053947 1212214313413