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445532093 = 312463613
BaseRepresentation
bin11010100011100…
…100011110111101
31011001100101010122
4122203210132331
51403024011333
6112113144325
714016650246
oct3243443675
91131311118
10445532093
11209544946
1210525b0a5
13713c4176
1443257ccd
15291a9798
hex1a8e47bd

445532093 has 6 divisors (see below), whose sum is σ = 460368702. Its totient is φ = 431159160.

The previous prime is 445532081. The next prime is 445532123. The reversal of 445532093 is 390235544.

It can be written as a sum of positive squares in only one way, i.e., 371795524 + 73736569 = 19282^2 + 8587^2 .

It is not a de Polignac number, because 445532093 - 212 = 445527997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445532023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230846 + ... + 232767.

It is an arithmetic number, because the mean of its divisors is an integer number (76728117).

Almost surely, 2445532093 is an apocalyptic number.

It is an amenable number.

445532093 is a deficient number, since it is larger than the sum of its proper divisors (14836609).

445532093 is an equidigital number, since it uses as much as digits as its factorization.

445532093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463675 (or 463644 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 445532093 is about 21107.6311555797. The cubic root of 445532093 is about 763.7648446394.

The spelling of 445532093 in words is "four hundred forty-five million, five hundred thirty-two thousand, ninety-three".

Divisors: 1 31 961 463613 14372003 445532093