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8026405 = 515110631
BaseRepresentation
bin11110100111100100100101
3120002210011021
4132213210211
54023321110
6444011141
7125136412
oct36474445
916083137
108026405
1145923a2
122830ab1
13188046a
1410cd109
15a882da
hex7a7925

8026405 has 8 divisors (see below), whose sum is σ = 9696384. Its totient is φ = 6378000.

The previous prime is 8026387. The next prime is 8026411. The reversal of 8026405 is 5046208.

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

It is not a de Polignac number, because 8026405 - 29 = 8025893 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 8026405.

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, 4561 + ... + 6070.

It is an arithmetic number, because the mean of its divisors is an integer number (1212048).

Almost surely, 28026405 is an apocalyptic number.

It is an amenable number.

8026405 is a deficient number, since it is larger than the sum of its proper divisors (1669979).

8026405 is a wasteful number, since it uses less digits than its factorization.

8026405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10787.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8026405 is about 2833.0910680739. The cubic root of 8026405 is about 200.2198000179.

The spelling of 8026405 in words is "eight million, twenty-six thousand, four hundred five".

Divisors: 1 5 151 755 10631 53155 1605281 8026405