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80198286 = 23723611361
BaseRepresentation
bin1001100011110…
…11101010001110
312120220111100220
410301323222032
5131012321121
611542532210
71662450150
oct461735216
9176814326
1080198286
11412a7183
1222a37066
13137cc70c
14a918ad0
1570926c6
hex4c7ba8e

80198286 has 64 divisors (see below), whose sum is σ = 194558976. Its totient is φ = 21542400.

The previous prime is 80198281. The next prime is 80198291. The reversal of 80198286 is 68289108.

It is an interprime number because it is at equal distance from previous prime (80198281) and next prime (80198291).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80198281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58246 + ... + 59606.

It is an arithmetic number, because the mean of its divisors is an integer number (3039984).

Almost surely, 280198286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80198286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97279488).

80198286 is an abundant number, since it is smaller than the sum of its proper divisors (114360690).

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

80198286 is a wasteful number, since it uses less digits than its factorization.

80198286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 80198286 is about 8955.3495744164. The cubic root of 80198286 is about 431.2426394879.

The spelling of 80198286 in words is "eighty million, one hundred ninety-eight thousand, two hundred eighty-six".

Divisors: 1 2 3 6 7 14 21 23 42 46 61 69 122 138 161 183 322 366 427 483 854 966 1281 1361 1403 2562 2722 2806 4083 4209 8166 8418 9527 9821 19054 19642 28581 29463 31303 57162 58926 62606 83021 93909 166042 187818 219121 249063 438242 498126 581147 657363 1162294 1314726 1743441 1909483 3486882 3818966 5728449 11456898 13366381 26732762 40099143 80198286