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20934033 = 36978011
BaseRepresentation
bin100111111011…
…0110110010001
31110101120002120
41033312312101
520324342113
62024404453
7342636111
oct117666621
943346076
1020934033
11108a905a
127016729
13444c603
142acd041
151c87a23
hex13f6d91

20934033 has 4 divisors (see below), whose sum is σ = 27912048. Its totient is φ = 13956020.

The previous prime is 20934031. The next prime is 20934037. The reversal of 20934033 is 33043902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20934033 - 21 = 20934031 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20933994 and 20934012.

It is not an unprimeable number, because it can be changed into a prime (20934031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3489003 + ... + 3489008.

It is an arithmetic number, because the mean of its divisors is an integer number (6978012).

Almost surely, 220934033 is an apocalyptic number.

It is an amenable number.

20934033 is a deficient number, since it is larger than the sum of its proper divisors (6978015).

20934033 is an equidigital number, since it uses as much as digits as its factorization.

20934033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6978014.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 20934033 is about 4575.3724438563. The cubic root of 20934033 is about 275.6032289816.

Adding to 20934033 its reverse (33043902), we get a palindrome (53977935).

The spelling of 20934033 in words is "twenty million, nine hundred thirty-four thousand, thirty-three".

Divisors: 1 3 6978011 20934033