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20033349 = 37953969
BaseRepresentation
bin100110001101…
…0111101000101
31101200210120220
41030122331011
520112031344
61553214553
7332165160
oct114327505
941623526
1020033349
1110343396
126861459
1341c566b
142936ad7
151b5ac19
hex131af45

20033349 has 8 divisors (see below), whose sum is σ = 30527040. Its totient is φ = 11447616.

The previous prime is 20033341. The next prime is 20033359. The reversal of 20033349 is 94333002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20033349 - 23 = 20033341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033341) 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 7 ways as a sum of consecutive naturals, for example, 476964 + ... + 477005.

It is an arithmetic number, because the mean of its divisors is an integer number (3815880).

Almost surely, 220033349 is an apocalyptic number.

It is an amenable number.

20033349 is a deficient number, since it is larger than the sum of its proper divisors (10493691).

20033349 is an equidigital number, since it uses as much as digits as its factorization.

20033349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953979.

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

The square root of 20033349 is about 4475.8629335582. The cubic root of 20033349 is about 271.5925497352.

The spelling of 20033349 in words is "twenty million, thirty-three thousand, three hundred forty-nine".

Divisors: 1 3 7 21 953969 2861907 6677783 20033349