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86871055 = 5151115061
BaseRepresentation
bin1010010110110…
…00110000001111
320001110111200111
411023120300033
5134214333210
612341540451
72103251245
oct513306017
9201414614
1086871055
1145044567
1225114727
1314cc79bb
14b774795
15795e88a
hex52d8c0f

86871055 has 8 divisors (see below), whose sum is σ = 104936544. Its totient is φ = 69036000.

The previous prime is 86871047. The next prime is 86871073. The reversal of 86871055 is 55017868.

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

It is not a de Polignac number, because 86871055 - 23 = 86871047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86870999 and 86871017.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56776 + ... + 58285.

It is an arithmetic number, because the mean of its divisors is an integer number (13117068).

Almost surely, 286871055 is an apocalyptic number.

86871055 is a deficient number, since it is larger than the sum of its proper divisors (18065489).

86871055 is a wasteful number, since it uses less digits than its factorization.

86871055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115217.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 86871055 is about 9320.4643124686. The cubic root of 86871055 is about 442.8857415008.

The spelling of 86871055 in words is "eighty-six million, eight hundred seventy-one thousand, fifty-five".

Divisors: 1 5 151 755 115061 575305 17374211 86871055