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1311434084508 = 223434512515159
BaseRepresentation
bin10011000101010111100…
…100000001000010011100
311122101001002121010110120
4103011113210001002130
5132441304111201013
62442244155434540
7163514362535622
oct23052744010234
94571032533416
101311434084508
114661a3396109
121921b8755a50
139688ac38512
144768bd73512
15241a7b5c123
hex1315790109c

1311434084508 has 24 divisors (see below), whose sum is σ = 3060084504960. Its totient is φ = 437134460400.

The previous prime is 1311434084461. The next prime is 1311434084509. The reversal of 1311434084508 is 8054804341131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311434084508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311434084509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 736168 + ... + 1778991.

It is an arithmetic number, because the mean of its divisors is an integer number (127503521040).

Almost surely, 21311434084508 is an apocalyptic number.

It is an amenable number.

1311434084508 is an abundant number, since it is smaller than the sum of its proper divisors (1748650420452).

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

1311434084508 is a wasteful number, since it uses less digits than its factorization.

1311434084508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558617 (or 2558615 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 1311434084508 in words is "one trillion, three hundred eleven billion, four hundred thirty-four million, eighty-four thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 43451 86902 130353 173804 260706 521412 2515159 5030318 7545477 10060636 15090954 30181908 109286173709 218572347418 327858521127 437144694836 655717042254 1311434084508