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212854749413 = 2066310301251
BaseRepresentation
bin1100011000111100100…
…0011011100011100101
3202100102012202121121112
43012033020123203211
511441411303440123
6241441211554405
721243511342355
oct3061710334345
9670365677545
10212854749413
11822a8a58749
123530475ba05
13170c2595987
14a43343ab65
15580bc83d78
hex318f21b8e5

212854749413 has 4 divisors (see below), whose sum is σ = 212865071328. Its totient is φ = 212844427500.

The previous prime is 212854749389. The next prime is 212854749451. The reversal of 212854749413 is 314947458212.

212854749413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212854749413 - 220 = 212853700837 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 (212854749313) 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, 5129963 + ... + 5171288.

It is an arithmetic number, because the mean of its divisors is an integer number (53216267832).

Almost surely, 2212854749413 is an apocalyptic number.

It is an amenable number.

212854749413 is a deficient number, since it is larger than the sum of its proper divisors (10321915).

212854749413 is a wasteful number, since it uses less digits than its factorization.

212854749413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10321914.

The product of its digits is 1935360, while the sum is 50.

The spelling of 212854749413 in words is "two hundred twelve billion, eight hundred fifty-four million, seven hundred forty-nine thousand, four hundred thirteen".

Divisors: 1 20663 10301251 212854749413