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1803242028 = 223797221311
BaseRepresentation
bin110101101111011…
…0100101000101100
311122200010012000210
41223132310220230
512143112221103
6454533422420
762454206250
oct15336645054
94580105023
101803242028
11845979475
12423a9aa10
13229786923
141316bc260
15a8498e03
hex6b7b4a2c

1803242028 has 48 divisors (see below), whose sum is σ = 4858241024. Its totient is φ = 509898240.

The previous prime is 1803241961. The next prime is 1803242041. The reversal of 1803242028 is 8202423081.

It is a junction number, because it is equal to n+sod(n) for n = 1803241986 and 1803242004.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102508 + ... + 118803.

Almost surely, 21803242028 is an apocalyptic number.

It is an amenable number.

1803242028 is an abundant number, since it is smaller than the sum of its proper divisors (3054998996).

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

1803242028 is a wasteful number, since it uses less digits than its factorization.

1803242028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221422 (or 221420 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 1803242028 is about 42464.5973488505. The cubic root of 1803242028 is about 1217.1702821664.

The spelling of 1803242028 in words is "one billion, eight hundred three million, two hundred forty-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 97 194 291 388 582 679 1164 1358 2037 2716 4074 8148 221311 442622 663933 885244 1327866 1549177 2655732 3098354 4647531 6196708 9295062 18590124 21467167 42934334 64401501 85868668 128803002 150270169 257606004 300540338 450810507 601080676 901621014 1803242028