Search a number
-
+
33805933 = 72689917
BaseRepresentation
bin1000000011110…
…1011001101101
32100121112000121
42000331121231
532123242213
63204324541
7560226400
oct200753155
970545017
1033805933
111809a997
12b3a3751
137008415
1446bdd37
152e7b88d
hex203d66d

33805933 has 6 divisors (see below), whose sum is σ = 39325326. Its totient is φ = 28976472.

The previous prime is 33805931. The next prime is 33805949. The reversal of 33805933 is 33950833.

33805933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 33028009 + 777924 = 5747^2 + 882^2 .

It is not a de Polignac number, because 33805933 - 21 = 33805931 is a prime.

It is a super-2 number, since 2×338059332 = 2285682212000978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33805931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344910 + ... + 345007.

It is an arithmetic number, because the mean of its divisors is an integer number (6554221).

Almost surely, 233805933 is an apocalyptic number.

It is an amenable number.

33805933 is a deficient number, since it is larger than the sum of its proper divisors (5519393).

33805933 is an equidigital number, since it uses as much as digits as its factorization.

33805933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689931 (or 689924 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 34.

The square root of 33805933 is about 5814.2869726218. The cubic root of 33805933 is about 323.3436294120.

The spelling of 33805933 in words is "thirty-three million, eight hundred five thousand, nine hundred thirty-three".

Divisors: 1 7 49 689917 4829419 33805933