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8029145 = 51605829
BaseRepresentation
bin11110101000001111011001
3120002220220202
4132220033121
54023413040
6444031545
7125150405
oct36501731
916086822
108029145
114594463
1228325b5
131881797
1410d0105
15a89015
hex7a83d9

8029145 has 4 divisors (see below), whose sum is σ = 9634980. Its totient is φ = 6423312.

The previous prime is 8029097. The next prime is 8029157. The reversal of 8029145 is 5419208.

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 1982464 + 6046681 = 1408^2 + 2459^2 .

It is a cyclic number.

It is not a de Polignac number, because 8029145 - 26 = 8029081 is a prime.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 802910 + ... + 802919.

It is an arithmetic number, because the mean of its divisors is an integer number (2408745).

Almost surely, 28029145 is an apocalyptic number.

It is an amenable number.

8029145 is a deficient number, since it is larger than the sum of its proper divisors (1605835).

8029145 is a wasteful number, since it uses less digits than its factorization.

8029145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605834.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 8029145 is about 2833.5745975711. The cubic root of 8029145 is about 200.2425806542.

The spelling of 8029145 in words is "eight million, twenty-nine thousand, one hundred forty-five".

Divisors: 1 5 1605829 8029145