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20300446 = 213277649
BaseRepresentation
bin100110101110…
…0001010011110
31102012100222101
41031130022132
520144103241
62003035314
7334356655
oct115341236
942170871
1020300446
1110506031
12696bb3a
13428a0ca
1429a619c
151baee31
hex135c29e

20300446 has 8 divisors (see below), whose sum is σ = 30477600. Its totient is φ = 10141248.

The previous prime is 20300419. The next prime is 20300459. The reversal of 20300446 is 64400302.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1171 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (3809700).

Almost surely, 220300446 is an apocalyptic number.

20300446 is a deficient number, since it is larger than the sum of its proper divisors (10177154).

20300446 is a wasteful number, since it uses less digits than its factorization.

20300446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20300446 is about 4505.6016246446. The cubic root of 20300446 is about 272.7942381889.

Adding to 20300446 its reverse (64400302), we get a palindrome (84700748).

The spelling of 20300446 in words is "twenty million, three hundred thousand, four hundred forty-six".

Divisors: 1 2 1327 2654 7649 15298 10150223 20300446