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20065375 = 531114593
BaseRepresentation
bin100110010001…
…0110001011111
31101202102112001
41030202301133
520114043000
61554023131
7332360431
oct114426137
941672461
1020065375
1110365460
126877aa7
134207105
142944651
151b6546a
hex1322c5f

20065375 has 16 divisors (see below), whose sum is σ = 27319968. Its totient is φ = 14592000.

The previous prime is 20065351. The next prime is 20065393. The reversal of 20065375 is 57356002.

It is not a de Polignac number, because 20065375 - 25 = 20065343 is a prime.

It is a Duffinian number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 5922 + ... + 8671.

It is an arithmetic number, because the mean of its divisors is an integer number (1707498).

Almost surely, 220065375 is an apocalyptic number.

20065375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20065375 is a deficient number, since it is larger than the sum of its proper divisors (7254593).

20065375 is a wasteful number, since it uses less digits than its factorization.

20065375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14619 (or 14609 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 20065375 is about 4479.4391389994. The cubic root of 20065375 is about 271.7371984095.

It can be divided in two parts, 2006 and 5375, that added together give a triangular number (7381 = T121).

The spelling of 20065375 in words is "twenty million, sixty-five thousand, three hundred seventy-five".

Divisors: 1 5 11 25 55 125 275 1375 14593 72965 160523 364825 802615 1824125 4013075 20065375