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33030868 = 22137972
BaseRepresentation
bin111111000000…
…0001011010100
32022011010211111
41332000023110
531423441433
63135544404
7550520623
oct176001324
968133744
1033030868
1117710642
12b08b104
136ac66c0
14455b6ba
152d76dcd
hex1f802d4

33030868 has 18 divisors (see below), whose sum is σ = 62328686. Its totient is φ = 15225888.

The previous prime is 33030863. The next prime is 33030869. The reversal of 33030868 is 86803033.

It can be written as a sum of positive squares in 3 ways, for example, as 1085764 + 31945104 = 1042^2 + 5652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33030863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41046 + ... + 41842.

Almost surely, 233030868 is an apocalyptic number.

It is an amenable number.

33030868 is a deficient number, since it is larger than the sum of its proper divisors (29297818).

33030868 is an equidigital number, since it uses as much as digits as its factorization.

33030868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 33030868 is about 5747.2487330896. The cubic root of 33030868 is about 320.8534121052.

The spelling of 33030868 in words is "thirty-three million, thirty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 13 26 52 797 1594 3188 10361 20722 41444 635209 1270418 2540836 8257717 16515434 33030868