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45205075 = 5210117903
BaseRepresentation
bin1010110001110…
…0011001010011
310011001122201001
42230130121103
543033030300
64252522431
71056144136
oct254343123
9104048631
1045205075
1123576273
1213180417
139499a86
14600a21d
153e7e16a
hex2b1c653

45205075 has 12 divisors (see below), whose sum is σ = 56612448. Its totient is φ = 35804000.

The previous prime is 45205067. The next prime is 45205079. The reversal of 45205075 is 57050254.

45205075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45205075 - 23 = 45205067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45205079) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6427 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (4717704).

Almost surely, 245205075 is an apocalyptic number.

45205075 is a deficient number, since it is larger than the sum of its proper divisors (11407373).

45205075 is a wasteful number, since it uses less digits than its factorization.

45205075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18014 (or 18009 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 45205075 is about 6723.4719453568. The cubic root of 45205075 is about 356.2288301773.

It can be divided in two parts, 45 and 205075, that added together give a triangular number (205120 = T640).

The spelling of 45205075 in words is "forty-five million, two hundred five thousand, seventy-five".

Divisors: 1 5 25 101 505 2525 17903 89515 447575 1808203 9041015 45205075