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86062820 = 225311271093
BaseRepresentation
bin1010010000100…
…11011011100100
312222221102222212
411020103123210
5134013002240
612312342552
72063344004
oct510233344
9188842885
1086062820
11446422a8
12249a4a58
1314aa3b5c
14b604004
157850165
hex52136e4

86062820 has 48 divisors (see below), whose sum is σ = 188203008. Its totient is φ = 33022080.

The previous prime is 86062819. The next prime is 86062841. The reversal of 86062820 is 2826068.

It is a happy 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, 78194 + ... + 79286.

It is an arithmetic number, because the mean of its divisors is an integer number (3920896).

Almost surely, 286062820 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 86062820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94101504).

86062820 is an abundant number, since it is smaller than the sum of its proper divisors (102140188).

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

86062820 is a wasteful number, since it uses less digits than its factorization.

86062820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 86062820 is about 9277.0049046015. The cubic root of 86062820 is about 441.5079459740.

Adding to 86062820 its reverse (2826068), we get a palindrome (88888888).

The spelling of 86062820 in words is "eighty-six million, sixty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 127 155 254 310 508 620 635 1093 1270 2186 2540 3937 4372 5465 7874 10930 15748 19685 21860 33883 39370 67766 78740 135532 138811 169415 277622 338830 555244 677660 694055 1388110 2776220 4303141 8606282 17212564 21515705 43031410 86062820