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8116831080 = 2332561336781
BaseRepresentation
bin1111000111100110…
…10000001101101000
3202221200020202000100
413203303100031220
5113110402043310
63421231505400
7405066632361
oct74363201550
922850222010
108116831080
113495815366
1216a6388260
139c47ca837
1456dddab68
153278c6ec0
hex1e3cd0368

8116831080 has 96 divisors (see below), whose sum is σ = 26423453160. Its totient is φ = 2160898560.

The previous prime is 8116831057. The next prime is 8116831097. The reversal of 8116831080 is 801386118.

It can be written as a sum of positive squares in 4 ways, for example, as 1178274276 + 6938556804 = 34326^2 + 83298^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202290 + ... + 239070.

Almost surely, 28116831080 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 8116831080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13211726580).

8116831080 is an abundant number, since it is smaller than the sum of its proper divisors (18306622080).

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

8116831080 is a wasteful number, since it uses less digits than its factorization.

8116831080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37411 (or 37404 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 8116831080 is about 90093.4574761120. The cubic root of 8116831080 is about 2009.6889100488.

The spelling of 8116831080 in words is "eight billion, one hundred sixteen million, eight hundred thirty-one thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 613 1226 1839 2452 3065 3678 4904 5517 6130 7356 9195 11034 12260 14712 18390 22068 24520 27585 36780 36781 44136 55170 73560 73562 110340 110343 147124 183905 220680 220686 294248 331029 367810 441372 551715 662058 735620 882744 1103430 1324116 1471240 1655145 2206860 2648232 3310290 4413720 6620580 13241160 22546753 45093506 67640259 90187012 112733765 135280518 180374024 202920777 225467530 270561036 338201295 405841554 450935060 541122072 676402590 811683108 901870120 1014603885 1352805180 1623366216 2029207770 2705610360 4058415540 8116831080