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13788361785488 = 243156209494567
BaseRepresentation
bin1100100010100101101001…
…1010000000000010010000
31210211011011122021201022012
43020221122122000002100
53301402031104113423
645154141433402052
72622114313251023
oct310513232000220
953734148251265
1013788361785488
11443667a847694
12166833a569328
13790310721914
143595088271ba
1518da00d6e078
hexc8a5a680090

13788361785488 has 40 divisors (see below), whose sum is σ = 27577269941760. Its totient is φ = 6671655774720.

The previous prime is 13788361785481. The next prime is 13788361785491. The reversal of 13788361785488 is 88458716388731.

It is not an unprimeable number, because it can be changed into a prime (13788361785481) 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, 27632381 + ... + 28126947.

It is an arithmetic number, because the mean of its divisors is an integer number (689431748544).

Almost surely, 213788361785488 is an apocalyptic number.

It is an amenable number.

13788361785488 is an abundant number, since it is smaller than the sum of its proper divisors (13788908156272).

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

13788361785488 is a wasteful number, since it uses less digits than its factorization.

13788361785488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550815 (or 550809 counting only the distinct ones).

The product of its digits is 1734082560, while the sum is 77.

The spelling of 13788361785488 in words is "thirteen trillion, seven hundred eighty-eight billion, three hundred sixty-one million, seven hundred eighty-five thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 31 62 124 248 496 56209 112418 224836 449672 494567 899344 989134 1742479 1978268 3484958 3956536 6969916 7913072 13939832 15331577 27879664 30663154 61326308 122652616 245305232 27799116503 55598233006 111196466012 222392932024 444785864048 861772611593 1723545223186 3447090446372 6894180892744 13788361785488