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1311562066031 = 72947808117011
BaseRepresentation
bin10011000101011111001…
…100001110100001101111
311122101101000102021002222
4103011133030032201233
5132442034342103111
62442305010505555
7163520505421610
oct23053714164157
94571330367088
101311562066031
11466259659568
121922335952bb
13968ab5c8329
14476a0d69c07
15241b3edc7db
hex1315f30e86f

1311562066031 has 32 divisors (see below), whose sum is σ = 1583896135680. Its totient is φ = 1062142502400.

The previous prime is 1311562065959. The next prime is 1311562066123. The reversal of 1311562066031 is 1306602651131.

It is not a de Polignac number, because 1311562066031 - 214 = 1311562049647 is a prime.

It is a super-2 number, since 2×13115620660312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311562065982 and 1311562066000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311562066831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77092316 + ... + 77109326.

It is an arithmetic number, because the mean of its divisors is an integer number (49496754240).

Almost surely, 21311562066031 is an apocalyptic number.

1311562066031 is a deficient number, since it is larger than the sum of its proper divisors (272334069649).

1311562066031 is a wasteful number, since it uses less digits than its factorization.

1311562066031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25175.

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 1311562066031 in words is "one trillion, three hundred eleven billion, five hundred sixty-two million, sixty-six thousand, thirty-one".

Divisors: 1 7 29 47 203 329 1363 8081 9541 17011 56567 119077 234349 379807 493319 799517 1640443 2658649 3453233 5596619 11014403 23185993 77100821 137465891 162301951 962261237 3986510839 6460896877 27905575873 45226278139 187366009433 1311562066031