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33020065 = 5132231699
BaseRepresentation
bin111110111110…
…1100010100001
32022010121000101
41331331202201
531423120230
63135422401
7550444261
oct175754241
968117011
1033020065
1117703511
12b084a01
136ac1800
1445577a1
152d73aca
hex1f7d8a1

33020065 has 24 divisors (see below), whose sum is σ = 44798400. Its totient is φ = 23310144.

The previous prime is 33019997. The next prime is 33020089. The reversal of 33020065 is 56002033.

It is not a de Polignac number, because 33020065 - 217 = 32888993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18586 + ... + 20284.

It is an arithmetic number, because the mean of its divisors is an integer number (1866600).

Almost surely, 233020065 is an apocalyptic number.

It is an amenable number.

33020065 is a deficient number, since it is larger than the sum of its proper divisors (11778335).

33020065 is a wasteful number, since it uses less digits than its factorization.

33020065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 33020065 is about 5746.3088152309. The cubic root of 33020065 is about 320.8184290972.

Adding to 33020065 its reverse (56002033), we get a palindrome (89022098).

The spelling of 33020065 in words is "thirty-three million, twenty thousand, sixty-five".

Divisors: 1 5 13 23 65 115 169 299 845 1495 1699 3887 8495 19435 22087 39077 110435 195385 287131 508001 1435655 2540005 6604013 33020065