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3130214211221 = 79163379641387
BaseRepresentation
bin101101100011001111010…
…011100101111010010101
3102002020122000021120121212
4231203033103211322111
5402241134314224341
610354000041551205
7442102424534666
oct55431723457225
912066560246555
103130214211221
11aa7575354979
124267a64a5505
13199240bc6326
14ab708a0336d
15566562bc5eb
hex2d8cf4e5e95

3130214211221 has 16 divisors (see below), whose sum is σ = 3197704012800. Its totient is φ = 3063521221488.

The previous prime is 3130214211191. The next prime is 3130214211301. The reversal of 3130214211221 is 1221124120313.

It is a cyclic number.

It is not a de Polignac number, because 3130214211221 - 210 = 3130214210197 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 (3130214211521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4559690 + ... + 5201076.

It is an arithmetic number, because the mean of its divisors is an integer number (199856500800).

Almost surely, 23130214211221 is an apocalyptic number.

It is an amenable number.

3130214211221 is a deficient number, since it is larger than the sum of its proper divisors (67489801579).

3130214211221 is a wasteful number, since it uses less digits than its factorization.

3130214211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642008.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 3130214211221 its reverse (1221124120313), we get a palindrome (4351338331534).

The spelling of 3130214211221 in words is "three trillion, one hundred thirty billion, two hundred fourteen million, two hundred eleven thousand, two hundred twenty-one".

Divisors: 1 79 163 379 12877 29941 61777 641387 4880383 50669573 104546081 243085673 8259140399 19203768167 39622964699 3130214211221