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20334444 = 22313130349
BaseRepresentation
bin100110110010…
…0011101101100
31102021002121120
41031210131230
520201200234
62003500540
7334561044
oct115443554
942232546
1020334444
1110529629
126987750
13429c720
1429b4724
151bba049
hex136476c

20334444 has 24 divisors (see below), whose sum is σ = 51097200. Its totient is φ = 6256704.

The previous prime is 20334439. The next prime is 20334451. The reversal of 20334444 is 44443302.

It is a happy number.

It is a super-2 number, since 2×203344442 = 826979225578272, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 65019 + ... + 65330.

It is an arithmetic number, because the mean of its divisors is an integer number (2129050).

Almost surely, 220334444 is an apocalyptic number.

It is an amenable number.

20334444 is an abundant number, since it is smaller than the sum of its proper divisors (30762756).

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

20334444 is a wasteful number, since it uses less digits than its factorization.

20334444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130369 (or 130367 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 20334444 is about 4509.3729054049. The cubic root of 20334444 is about 272.9464398677.

Adding to 20334444 its reverse (44443302), we get a palindrome (64777746).

The spelling of 20334444 in words is "twenty million, three hundred thirty-four thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 130349 260698 391047 521396 782094 1564188 1694537 3389074 5083611 6778148 10167222 20334444