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2018481656752 = 2411139318725889
BaseRepresentation
bin11101010111110110111…
…000011101001110110000
321010222001110100021211201
4131113312320131032300
5231032322301004002
64143135551020544
7265554566665201
oct35276670351660
97128043307751
102018481656752
11709040301080
1228724150a754
1311845a4c6742
146d9a32595a8
153778a7c9087
hex1d5f6e1d3b0

2018481656752 has 80 divisors (see below), whose sum is σ = 4298543625600. Its totient is φ = 910570014720.

The previous prime is 2018481656747. The next prime is 2018481656771. The reversal of 2018481656752 is 2576561848102.

It is a junction number, because it is equal to n+sod(n) for n = 2018481656693 and 2018481656702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77953824 + ... + 77979712.

It is an arithmetic number, because the mean of its divisors is an integer number (53731795320).

Almost surely, 22018481656752 is an apocalyptic number.

2018481656752 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2018481656752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2149271812800).

2018481656752 is an abundant number, since it is smaller than the sum of its proper divisors (2280061968848).

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

2018481656752 is a wasteful number, since it uses less digits than its factorization.

2018481656752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29234 (or 29228 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 2018481656752 in words is "two trillion, eighteen billion, four hundred eighty-one million, six hundred fifty-six thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 11 16 22 44 88 139 176 278 556 1112 1529 2224 3058 3187 6116 6374 12232 12748 24464 25496 25889 35057 50992 51778 70114 103556 140228 207112 280456 284779 414224 442993 560912 569558 885986 1139116 1771972 2278232 3543944 3598571 4556464 4872923 7087888 7197142 9745846 14394284 19491692 28788568 38983384 39584281 57577136 77966768 79168562 82508243 158337124 165016486 316674248 330032972 633348496 660065944 907590673 1320131888 1815181346 3630362692 7260725384 11468645777 14521450768 22937291554 45874583108 91749166216 126155103547 183498332432 252310207094 504620414188 1009240828376 2018481656752