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86148013 = 712306859
BaseRepresentation
bin1010010001010…
…00001110101101
320000002202212011
411020220032231
5134023214023
612314241221
72064150250
oct510501655
9200082764
1086148013
11446a0306
1224a26211
1314b03873
14b627097
15786a50d
hex52283ad

86148013 has 4 divisors (see below), whose sum is σ = 98454880. Its totient is φ = 73841148.

The previous prime is 86147987. The next prime is 86148019. The reversal of 86148013 is 31084168.

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 86148013 - 25 = 86147981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86148019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6153423 + ... + 6153436.

It is an arithmetic number, because the mean of its divisors is an integer number (24613720).

Almost surely, 286148013 is an apocalyptic number.

It is an amenable number.

86148013 is a deficient number, since it is larger than the sum of its proper divisors (12306867).

86148013 is a wasteful number, since it uses less digits than its factorization.

86148013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12306866.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 86148013 is about 9281.5953908797. The cubic root of 86148013 is about 441.6535798345.

The spelling of 86148013 in words is "eighty-six million, one hundred forty-eight thousand, thirteen".

Divisors: 1 7 12306859 86148013