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1311423362488 = 23163927920311
BaseRepresentation
bin10011000101010110111…
…011000111010110111000
311122101000100102101121201
4103011112323013112320
5132441243340044423
62442243133543544
7163514202441241
oct23052673072670
94571010371551
101311423362488
11466198332538
121921b5044bb4
1396888953125
144768a781cc8
15241a6c402ad
hex13156ec75b8

1311423362488 has 8 divisors (see below), whose sum is σ = 2458918804680. Its totient is φ = 655711681240.

The previous prime is 1311423362363. The next prime is 1311423362489. The reversal of 1311423362488 is 8842633241131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311423362489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81963960148 + ... + 81963960163.

It is an arithmetic number, because the mean of its divisors is an integer number (307364850585).

Almost surely, 21311423362488 is an apocalyptic number.

It is an amenable number.

1311423362488 is a deficient number, since it is larger than the sum of its proper divisors (1147495442192).

1311423362488 is a wasteful number, since it uses less digits than its factorization.

1311423362488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163927920317 (or 163927920313 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The spelling of 1311423362488 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred sixty-two thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 163927920311 327855840622 655711681244 1311423362488