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212104351345 = 51811489115739
BaseRepresentation
bin1100010110001001100…
…1111000111001110001
3202021110220202102222111
43011202121320321301
511433342203220340
6241234524205321
721216100145035
oct3054231707161
9667426672874
10212104351345
1181a53416557
1235135399841
1317002c8bc53
14a3a19041c5
1557b5e58aea
hex3162678e71

212104351345 has 16 divisors (see below), whose sum is σ = 255964887360. Its totient is φ = 168723950400.

The previous prime is 212104351339. The next prime is 212104351373. The reversal of 212104351345 is 543153401212.

212104351345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212104351345 - 25 = 212104351313 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13468486 + ... + 13484224.

It is an arithmetic number, because the mean of its divisors is an integer number (15997805460).

Almost surely, 2212104351345 is an apocalyptic number.

It is an amenable number.

212104351345 is a deficient number, since it is larger than the sum of its proper divisors (43860536015).

212104351345 is a wasteful number, since it uses less digits than its factorization.

212104351345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30816.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 212104351345 its reverse (543153401212), we get a palindrome (755257752557).

The spelling of 212104351345 in words is "two hundred twelve billion, one hundred four million, three hundred fifty-one thousand, three hundred forty-five".

Divisors: 1 5 181 905 14891 15739 74455 78695 2695271 2848759 13476355 14243795 234369449 1171847245 42420870269 212104351345