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86708086542 = 232711157398471
BaseRepresentation
bin101000011000000110…
…1000110011100001110
322021210211120011210200
41100300031012130032
52410034232232132
6103455543114330
76156464401140
oct1206015063416
9267724504720
1086708086542
11338554aa860
121497a4429a6
13823ab118ac
1442a7a28c90
1523c7374d7c
hex143034670e

86708086542 has 96 divisors (see below), whose sum is σ = 235716908544. Its totient is φ = 22378075200.

The previous prime is 86708086541. The next prime is 86708086559. The reversal of 86708086542 is 24568080768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86708086541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18367 + ... + 416837.

It is an arithmetic number, because the mean of its divisors is an integer number (2455384464).

Almost surely, 286708086542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86708086542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117858454272).

86708086542 is an abundant number, since it is smaller than the sum of its proper divisors (149008822002).

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

86708086542 is a wasteful number, since it uses less digits than its factorization.

86708086542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398654 (or 398651 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 86708086542 in words is "eighty-six billion, seven hundred eight million, eighty-six thousand, five hundred forty-two".

Divisors: 1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 77 99 126 154 157 198 231 314 462 471 693 942 1099 1386 1413 1727 2198 2826 3297 3454 5181 6594 9891 10362 12089 15543 19782 24178 31086 36267 72534 108801 217602 398471 796942 1195413 2390826 2789297 3586239 4383181 5578594 7172478 8367891 8766362 13149543 16735782 25103673 26299086 30682267 39448629 50207346 61364534 62559947 78897258 92046801 125119894 184093602 187679841 276140403 375359682 437919629 552280806 563039523 688159417 875839258 1126079046 1313758887 1376318834 2064478251 2627517774 3941276661 4128956502 4817115919 6193434753 7882553322 9634231838 12386869506 14451347757 28902695514 43354043271 86708086542