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33011230 = 257471589
BaseRepresentation
bin111110111101…
…1011000011110
32022010010220011
41331323120132
531422324410
63135313434
7550406440
oct175733036
968103804
1033011230
11176a790a
12b07b87a
136aba795
144554490
152d7118a
hex1f7b61e

33011230 has 16 divisors (see below), whose sum is σ = 67908960. Its totient is φ = 11318112.

The previous prime is 33011219. The next prime is 33011239. The reversal of 33011230 is 3211033.

It is a super-2 number, since 2×330112302 = 2179482612225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33011230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33011239) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 235725 + ... + 235864.

It is an arithmetic number, because the mean of its divisors is an integer number (4244310).

Almost surely, 233011230 is an apocalyptic number.

33011230 is an abundant number, since it is smaller than the sum of its proper divisors (34897730).

33011230 is a wasteful number, since it uses less digits than its factorization.

33011230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471603.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 33011230 is about 5745.5400094334. The cubic root of 33011230 is about 320.7898133282.

Adding to 33011230 its reverse (3211033), we get a palindrome (36222263).

The spelling of 33011230 in words is "thirty-three million, eleven thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 471589 943178 2357945 3301123 4715890 6602246 16505615 33011230