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1311421564146 = 233720272914309
BaseRepresentation
bin10011000101010110110…
…100010000010011110010
311122101000020001000202110
4103011112310100103302
5132441242410023041
62442243031230150
7163514151241251
oct23052664202362
94571006030673
101311421564146
11466197314401
121921b4518356
1396888473715
144768a434798
15241a69d7516
hex13156d104f2

1311421564146 has 32 divisors (see below), whose sum is σ = 2695060630080. Its totient is φ = 425115936576.

The previous prime is 1311421564139. The next prime is 1311421564283. The reversal of 1311421564146 is 6414651241131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1007161 + ... + 1907148.

It is an arithmetic number, because the mean of its divisors is an integer number (84220644690).

Almost surely, 21311421564146 is an apocalyptic number.

1311421564146 is an abundant number, since it is smaller than the sum of its proper divisors (1383639065934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311421564146 is a wasteful number, since it uses less digits than its factorization.

1311421564146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916378.

The product of its digits is 69120, while the sum is 39.

The spelling of 1311421564146 in words is "one trillion, three hundred eleven billion, four hundred twenty-one million, five hundred sixty-four thousand, one hundred forty-six".

Divisors: 1 2 3 6 37 74 111 222 2027 4054 6081 12162 74999 149998 224997 449994 2914309 5828618 8742927 17485854 107829433 215658866 323488299 646976598 5907304343 11814608686 17721913029 35443826058 218570260691 437140521382 655710782073 1311421564146