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19396061 = 23843307
BaseRepresentation
bin100100111111…
…1010111011101
31100111102101122
41021333113131
514431133221
61531420325
7323602166
oct111772735
940442348
1019396061
11aa48603
1265b46a5
134031579
14280c76d
151a81eab
hex127f5dd

19396061 has 4 divisors (see below), whose sum is σ = 20239392. Its totient is φ = 18552732.

The previous prime is 19396043. The next prime is 19396063. The reversal of 19396061 is 16069391.

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 19396061 - 210 = 19395037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19396063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421631 + ... + 421676.

It is an arithmetic number, because the mean of its divisors is an integer number (5059848).

Almost surely, 219396061 is an apocalyptic number.

It is an amenable number.

19396061 is a deficient number, since it is larger than the sum of its proper divisors (843331).

19396061 is an equidigital number, since it uses as much as digits as its factorization.

19396061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843330.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 19396061 is about 4404.0959344683. The cubic root of 19396061 is about 268.6815512719.

It can be divided in two parts, 1939 and 6061, that added together give a cube (8000 = 203).

The spelling of 19396061 in words is "nineteen million, three hundred ninety-six thousand, sixty-one".

Divisors: 1 23 843307 19396061