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33020212 = 2229284657
BaseRepresentation
bin111110111110…
…1100100110100
32022010121012211
41331331210310
531423121322
63135423204
7550444561
oct175754464
968117184
1033020212
1117703635
12b084b04
136ac18b4
144557868
152d73b77
hex1f7d934

33020212 has 12 divisors (see below), whose sum is σ = 59778180. Its totient is φ = 15940736.

The previous prime is 33020201. The next prime is 33020231. The reversal of 33020212 is 21202033.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14409616 + 18610596 = 3796^2 + 4314^2 .

It is a junction number, because it is equal to n+sod(n) for n = 33020192 and 33020201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142213 + ... + 142444.

It is an arithmetic number, because the mean of its divisors is an integer number (4981515).

Almost surely, 233020212 is an apocalyptic number.

It is an amenable number.

33020212 is a deficient number, since it is larger than the sum of its proper divisors (26757968).

33020212 is a wasteful number, since it uses less digits than its factorization.

33020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284690 (or 284688 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 33020212 is about 5746.3216060363. The cubic root of 33020212 is about 320.8189051738.

Adding to 33020212 its reverse (21202033), we get a palindrome (54222245).

The spelling of 33020212 in words is "thirty-three million, twenty thousand, two hundred twelve".

Divisors: 1 2 4 29 58 116 284657 569314 1138628 8255053 16510106 33020212