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13887911130752 = 271972112610227
BaseRepresentation
bin1100101000011000100000…
…0000100111011010000000
31211011200010101221102110202
43022012020000213122000
53310014420222141002
645312003541344332
72632240245602231
oct312061000473200
954150111842422
1013887911130752
11447491485a15a
1216836a14080a8
13799816a65649
1436026da99088
151913ca73b502
hexca188027680

13887911130752 has 64 divisors (see below), whose sum is σ = 27939567284640. Its totient is φ = 6875961738240.

The previous prime is 13887911130689. The next prime is 13887911130799. The reversal of 13887911130752 is 25703111978831.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4015463 + ... + 6625689.

Almost surely, 213887911130752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13887911130752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13969783642320).

13887911130752 is an abundant number, since it is smaller than the sum of its proper divisors (14051656153888).

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

13887911130752 is a wasteful number, since it uses less digits than its factorization.

13887911130752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610649 (or 2610637 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 56.

The spelling of 13887911130752 in words is "thirteen trillion, eight hundred eighty-seven billion, nine hundred eleven million, one hundred thirty thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 128 197 211 394 422 788 844 1576 1688 3152 3376 6304 6752 12608 13504 25216 27008 41567 83134 166268 332536 665072 1330144 2610227 2660288 5220454 5320576 10440908 20881816 41763632 83527264 167054528 334109056 514214719 550757897 1028429438 1101515794 2056858876 2203031588 4113717752 4406063176 8227435504 8812126352 16454871008 17624252704 32909742016 35248505408 65819484032 70497010816 108499305709 216998611418 433997222836 867994445672 1735988891344 3471977782688 6943955565376 13887911130752