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86280043 = 263328061
BaseRepresentation
bin1010010010010…
…00011101101011
320000100110222011
411021020131223
5134041430133
612321140351
72065240213
oct511103553
9200313864
1086280043
1144780523
1224a8a6b7
1314b4b9a5
14b65d243
1578946cd
hex524876b

86280043 has 4 divisors (see below), whose sum is σ = 86608368. Its totient is φ = 85951720.

The previous prime is 86280011. The next prime is 86280053. The reversal of 86280043 is 34008268.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86280043 - 25 = 86280011 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86279987 and 86280014.

It is not an unprimeable number, because it can be changed into a prime (86280053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163768 + ... + 164293.

It is an arithmetic number, because the mean of its divisors is an integer number (21652092).

Almost surely, 286280043 is an apocalyptic number.

86280043 is a deficient number, since it is larger than the sum of its proper divisors (328325).

86280043 is a wasteful number, since it uses less digits than its factorization.

86280043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328324.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 86280043 is about 9288.7051304259. The cubic root of 86280043 is about 441.8790900007.

The spelling of 86280043 in words is "eighty-six million, two hundred eighty thousand, forty-three".

Divisors: 1 263 328061 86280043