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86552149 = 227381287
BaseRepresentation
bin1010010100010…
…10111001010101
320000212022020011
411022022321111
5134124132044
612331040221
72100452425
oct512127125
9200768204
1086552149
1144946a02
1224ba0071
1314c157b8
14b6d0485
1578ea134
hex528ae55

86552149 has 4 divisors (see below), whose sum is σ = 86933664. Its totient is φ = 86170636.

The previous prime is 86552131. The next prime is 86552159. The reversal of 86552149 is 94125568.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86552149 - 29 = 86551637 is a prime.

It is a Smith number, since the sum of its digits (40) 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (86552129) 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, 190417 + ... + 190870.

It is an arithmetic number, because the mean of its divisors is an integer number (21733416).

Almost surely, 286552149 is an apocalyptic number.

It is an amenable number.

86552149 is a deficient number, since it is larger than the sum of its proper divisors (381515).

86552149 is a wasteful number, since it uses less digits than its factorization.

86552149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381514.

The product of its digits is 86400, while the sum is 40.

The square root of 86552149 is about 9303.3407440553. The cubic root of 86552149 is about 442.3431284511.

The spelling of 86552149 in words is "eighty-six million, five hundred fifty-two thousand, one hundred forty-nine".

Divisors: 1 227 381287 86552149