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1212041413 = 11157701819
BaseRepresentation
bin100100000111110…
…0100100011000101
310010110200002020201
41020033210203011
54440240311123
6320134130501
742015116302
oct11017444305
93113602221
101212041413
11572190720
12299ab0a31
1316414c28b
14b6d860a9
15716185ad
hex483e48c5

1212041413 has 8 divisors (see below), whose sum is σ = 1330650720. Its totient is φ = 1094836080.

The previous prime is 1212041381. The next prime is 1212041429. The reversal of 1212041413 is 3141402121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212041413 - 25 = 1212041381 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 (1212041443) by changing a digit.

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, 349183 + ... + 352636.

It is an arithmetic number, because the mean of its divisors is an integer number (166331340).

Almost surely, 21212041413 is an apocalyptic number.

It is an amenable number.

1212041413 is a deficient number, since it is larger than the sum of its proper divisors (118609307).

1212041413 is a wasteful number, since it uses less digits than its factorization.

1212041413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701987.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1212041413 is about 34814.3851446496. The cubic root of 1212041413 is about 1066.2011657076.

Adding to 1212041413 its reverse (3141402121), we get a palindrome (4353443534).

The spelling of 1212041413 in words is "one billion, two hundred twelve million, forty-one thousand, four hundred thirteen".

Divisors: 1 11 157 1727 701819 7720009 110185583 1212041413