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86966929 = 712423847
BaseRepresentation
bin1010010111100…
…00001010010001
320001122101012101
411023300022101
5134230420204
612344000401
72104130620
oct513601221
9201571171
1086966929
11450aa5a5
1225160101
131502c52a
14b79b6b7
15797cea4
hex52f0291

86966929 has 4 divisors (see below), whose sum is σ = 99390784. Its totient is φ = 74543076.

The previous prime is 86966903. The next prime is 86966939. The reversal of 86966929 is 92966968.

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 86966929 - 27 = 86966801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86966929.

It is not an unprimeable number, because it can be changed into a prime (86966939) by changing a digit.

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, 6211917 + ... + 6211930.

It is an arithmetic number, because the mean of its divisors is an integer number (24847696).

Almost surely, 286966929 is an apocalyptic number.

It is an amenable number.

86966929 is a deficient number, since it is larger than the sum of its proper divisors (12423855).

86966929 is a wasteful number, since it uses less digits than its factorization.

86966929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12423854.

The product of its digits is 2519424, while the sum is 55.

The square root of 86966929 is about 9325.6060929036. The cubic root of 86966929 is about 443.0486097756.

It can be divided in two parts, 8696 and 6929, that added together give a 6-th power (15625 = 56).

The spelling of 86966929 in words is "eighty-six million, nine hundred sixty-six thousand, nine hundred twenty-nine".

Divisors: 1 7 12423847 86966929