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33389001 = 3212013089
BaseRepresentation
bin111111101011…
…1100111001001
32022211100002200
41333113213021
532021422001
63151350413
7553542012
oct177274711
968740080
1033389001
1117935718
12b222409
136bc0709
144612009
152de8086
hex1fd79c9

33389001 has 12 divisors (see below), whose sum is σ = 48284340. Its totient is φ = 22233600.

The previous prime is 33388997. The next prime is 33389009. The reversal of 33389001 is 10098333.

It can be written as a sum of positive squares in 2 ways, for example, as 12595401 + 20793600 = 3549^2 + 4560^2 .

It is not a de Polignac number, because 33389001 - 22 = 33388997 is a prime.

It is a super-2 number, since 2×333890012 = 2229650775556002, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33389009) 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 11 ways as a sum of consecutive naturals, for example, 9265 + ... + 12353.

It is an arithmetic number, because the mean of its divisors is an integer number (4023695).

Almost surely, 233389001 is an apocalyptic number.

33389001 is the 3089-th nonagonal number.

It is an amenable number.

33389001 is a deficient number, since it is larger than the sum of its proper divisors (14895339).

33389001 is a wasteful number, since it uses less digits than its factorization.

33389001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4296 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 33389001 is about 5778.3216421380. The cubic root of 33389001 is about 322.0088503669.

The spelling of 33389001 in words is "thirty-three million, three hundred eighty-nine thousand, one".

Divisors: 1 3 9 1201 3089 3603 9267 10809 27801 3709889 11129667 33389001