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86148005 = 517229601
BaseRepresentation
bin1010010001010…
…00001110100101
320000002202211212
411020220032211
5134023214010
612314241205
72064150236
oct510501645
9200082755
1086148005
11446a02a9
1224a26205
1314b03868
14b62708d
15786a505
hex52283a5

86148005 has 4 divisors (see below), whose sum is σ = 103377612. Its totient is φ = 68918400.

The previous prime is 86147987. The next prime is 86148019. The reversal of 86148005 is 50084168.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 67338436 = 4337^2 + 8206^2 .

It is a de Polignac number, because none of the positive numbers 2k-86148005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8614796 + ... + 8614805.

It is an arithmetic number, because the mean of its divisors is an integer number (25844403).

Almost surely, 286148005 is an apocalyptic number.

It is an amenable number.

86148005 is a deficient number, since it is larger than the sum of its proper divisors (17229607).

86148005 is a wasteful number, since it uses less digits than its factorization.

86148005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17229606.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 86148005 is about 9281.5949599193. The cubic root of 86148005 is about 441.6535661634.

The spelling of 86148005 in words is "eighty-six million, one hundred forty-eight thousand, five".

Divisors: 1 5 17229601 86148005