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20755941 = 36918647
BaseRepresentation
bin100111100101…
…1010111100101
31110001111210120
41033023113211
520303142231
62020512153
7341264643
oct117132745
943044716
1020755941
1110797278
126b4b659
1343b952b
142a84193
151c4ed96
hex13cb5e5

20755941 has 4 divisors (see below), whose sum is σ = 27674592. Its totient is φ = 13837292.

The previous prime is 20755937. The next prime is 20755951. The reversal of 20755941 is 14955702.

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 20755941 - 22 = 20755937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20755951) 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, 3459321 + ... + 3459326.

It is an arithmetic number, because the mean of its divisors is an integer number (6918648).

Almost surely, 220755941 is an apocalyptic number.

It is an amenable number.

20755941 is a deficient number, since it is larger than the sum of its proper divisors (6918651).

20755941 is an equidigital number, since it uses as much as digits as its factorization.

20755941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918650.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 20755941 is about 4555.8688523705. The cubic root of 20755941 is about 274.8194561504.

The spelling of 20755941 in words is "twenty million, seven hundred fifty-five thousand, nine hundred forty-one".

Divisors: 1 3 6918647 20755941