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86885247 = 329998681
BaseRepresentation
bin1010010110111…
…00001101111111
320001111020011010
411023130031333
5134220311442
612342130303
72103340521
oct513341577
9201436133
1086885247
1145054199
1225120993
13150012b7
14b779a11
157963b9c
hex52dc37f

86885247 has 8 divisors (see below), whose sum is σ = 119841840. Its totient is φ = 55926080.

The previous prime is 86885243. The next prime is 86885251. The reversal of 86885247 is 74258868.

It is an interprime number because it is at equal distance from previous prime (86885243) and next prime (86885251).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86885247 - 22 = 86885243 is a prime.

It is a super-2 number, since 2×868852472 = 15098092292502018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86885196 and 86885205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86885243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 499254 + ... + 499427.

It is an arithmetic number, because the mean of its divisors is an integer number (14980230).

Almost surely, 286885247 is an apocalyptic number.

86885247 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

86885247 is a deficient number, since it is larger than the sum of its proper divisors (32956593).

86885247 is a wasteful number, since it uses less digits than its factorization.

86885247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998713.

The product of its digits is 860160, while the sum is 48.

The square root of 86885247 is about 9321.2256168382. The cubic root of 86885247 is about 442.9098580576.

The spelling of 86885247 in words is "eighty-six million, eight hundred eighty-five thousand, two hundred forty-seven".

Divisors: 1 3 29 87 998681 2996043 28961749 86885247