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8023105 = 51604621
BaseRepresentation
bin11110100110110001000001
3120002121122001
4132212301001
54023214410
6443544001
7125123656
oct36466101
916077561
108023105
11458a972
12282b001
13187bacc
1410cbc2d
15a8733a
hex7a6c41

8023105 has 4 divisors (see below), whose sum is σ = 9627732. Its totient is φ = 6418480.

The previous prime is 8023091. The next prime is 8023123. The reversal of 8023105 is 5013208.

It is a happy number.

8023105 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3713329 + 4309776 = 1927^2 + 2076^2 .

It is not a de Polignac number, because 8023105 - 215 = 7990337 is a prime.

It is a Duffinian 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, 802306 + ... + 802315.

It is an arithmetic number, because the mean of its divisors is an integer number (2406933).

Almost surely, 28023105 is an apocalyptic number.

It is an amenable number.

8023105 is a deficient number, since it is larger than the sum of its proper divisors (1604627).

8023105 is a wasteful number, since it uses less digits than its factorization.

8023105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604626.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 8023105 is about 2832.5086054591. The cubic root of 8023105 is about 200.1923566020.

It can be divided in two parts, 8023 and 105, that added together give a triangular number (8128 = T127).

The spelling of 8023105 in words is "eight million, twenty-three thousand, one hundred five".

Divisors: 1 5 1604621 8023105