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33090190 = 257267531
BaseRepresentation
bin111111000111…
…0101010001110
32022021011012121
41332032222032
531432341230
63141123154
7551155600
oct176165216
968234177
1033090190
1117751171
12b0b94ba
136b176c3
144575170
152d8977a
hex1f8ea8e

33090190 has 24 divisors (see below), whose sum is σ = 69287832. Its totient is φ = 11345040.

The previous prime is 33090163. The next prime is 33090199. The reversal of 33090190 is 9109033.

It is a super-2 number, since 2×330901902 = 2189921348472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33090199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33276 + ... + 34255.

It is an arithmetic number, because the mean of its divisors is an integer number (2886993).

Almost surely, 233090190 is an apocalyptic number.

33090190 is an abundant number, since it is smaller than the sum of its proper divisors (36197642).

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

33090190 is a wasteful number, since it uses less digits than its factorization.

33090190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67552 (or 67545 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 33090190 is about 5752.4073221565. The cubic root of 33090190 is about 321.0453768145.

The spelling of 33090190 in words is "thirty-three million, ninety thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 67531 135062 337655 472717 675310 945434 2363585 3309019 4727170 6618038 16545095 33090190