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86752895872 = 2719293139679
BaseRepresentation
bin101000011001011100…
…0000010001110000000
322021220221212201122111
41100302320002032000
52410132220131442
6103504223345104
76160550306446
oct1206270021600
9267827781574
1086752895872
1133878825765
1214991452194
1382471a04a6
1442ad970b96
1523cb276b17
hex1432e02380

86752895872 has 128 divisors (see below), whose sum is σ = 194273280000. Its totient is φ = 38395607040.

The previous prime is 86752895861. The next prime is 86752895899. The reversal of 86752895872 is 27859825768.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 86752895798 and 86752895807.

It is a congruent number.

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, 2166529 + ... + 2206207.

It is an arithmetic number, because the mean of its divisors is an integer number (1517760000).

Almost surely, 286752895872 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 86752895872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97136640000).

86752895872 is an abundant number, since it is smaller than the sum of its proper divisors (107520384128).

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

86752895872 is a wasteful number, since it uses less digits than its factorization.

86752895872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39772 (or 39760 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 67.

The spelling of 86752895872 in words is "eighty-six billion, seven hundred fifty-two million, eight hundred ninety-five thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 19 29 31 32 38 58 62 64 76 116 124 128 152 232 248 304 464 496 551 589 608 899 928 992 1102 1178 1216 1798 1856 1984 2204 2356 2432 3596 3712 3968 4408 4712 7192 8816 9424 14384 17081 17632 18848 28768 34162 35264 37696 39679 57536 68324 70528 75392 79358 115072 136648 158716 273296 317432 546592 634864 753901 1093184 1150691 1230049 1269728 1507802 2186368 2301382 2460098 2539456 3015604 4602764 4920196 5078912 6031208 9205528 9840392 12062416 18411056 19680784 21863129 23370931 24124832 35671421 36822112 39361568 43726258 46741862 48249664 71342842 73644224 78723136 87452516 93483724 96499328 142685684 147288448 157446272 174905032 186967448 285371368 349810064 373934896 570742736 677756999 699620128 747869792 1141485472 1355513998 1399240256 1495739584 2282970944 2711027996 2798480512 2991479168 4565941888 5422055992 10844111984 21688223968 43376447936 86752895872