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1311446320652 = 221325220121551
BaseRepresentation
bin10011000101011000010…
…010101100011000001100
311122101001221121210022002
4103011120102230120030
5132441320224230102
62442245314011432
7163514601540536
oct23053022543014
94571057553262
101311446320652
114661aa293326
12192200876b78
1396890630b40
144768d83a856
15241a8c77902
hex131584ac60c

1311446320652 has 12 divisors (see below), whose sum is σ = 2471571912096. Its totient is φ = 605282917200.

The previous prime is 1311446320633. The next prime is 1311446320693. The reversal of 1311446320652 is 2560236441131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12610060724 + ... + 12610060827.

It is an arithmetic number, because the mean of its divisors is an integer number (205964326008).

Almost surely, 21311446320652 is an apocalyptic number.

It is an amenable number.

1311446320652 is a deficient number, since it is larger than the sum of its proper divisors (1160125591444).

1311446320652 is a wasteful number, since it uses less digits than its factorization.

1311446320652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25220121568 (or 25220121566 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 1311446320652 in words is "one trillion, three hundred eleven billion, four hundred forty-six million, three hundred twenty thousand, six hundred fifty-two".

Divisors: 1 2 4 13 26 52 25220121551 50440243102 100880486204 327861580163 655723160326 1311446320652