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444713538 = 23312639091
BaseRepresentation
bin11010100000011…
…100101001000010
31010222210210021210
4122200130221002
51402321313123
6112043430550
714010000633
oct3240345102
91128723253
10444713538
11209035955
12104b25456
1371198709
14430c388a
1529096e93
hex1a81ca42

444713538 has 32 divisors (see below), whose sum is σ = 921710592. Its totient is φ = 142894800.

The previous prime is 444713531. The next prime is 444713551. The reversal of 444713538 is 835317444.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 444713496 and 444713505.

It is not an unprimeable number, because it can be changed into a prime (444713531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44373 + ... + 53463.

It is an arithmetic number, because the mean of its divisors is an integer number (28803456).

Almost surely, 2444713538 is an apocalyptic number.

444713538 is an abundant number, since it is smaller than the sum of its proper divisors (476997054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444713538 is a wasteful number, since it uses less digits than its factorization.

444713538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

The product of its digits is 161280, while the sum is 39.

The square root of 444713538 is about 21088.2322160963. The cubic root of 444713538 is about 763.2968149083.

The spelling of 444713538 in words is "four hundred forty-four million, seven hundred thirteen thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 31 62 93 186 263 526 789 1578 8153 9091 16306 18182 24459 27273 48918 54546 281821 563642 845463 1690926 2390933 4781866 7172799 14345598 74118923 148237846 222356769 444713538