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19927041 = 36642347
BaseRepresentation
bin100110000000…
…1000000000001
31101111101202120
41030001000001
520100131131
61551034453
7331243221
oct114010001
941441676
1019927041
1110280532
12680ba29
134189164
14290a081
151b39496
hex1301001

19927041 has 4 divisors (see below), whose sum is σ = 26569392. Its totient is φ = 13284692.

The previous prime is 19927027. The next prime is 19927049. The reversal of 19927041 is 14072991.

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 19927041 - 217 = 19795969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19926993 and 19927011.

It is not an unprimeable number, because it can be changed into a prime (19927049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3321171 + ... + 3321176.

It is an arithmetic number, because the mean of its divisors is an integer number (6642348).

Almost surely, 219927041 is an apocalyptic number.

It is an amenable number.

19927041 is a deficient number, since it is larger than the sum of its proper divisors (6642351).

19927041 is an equidigital number, since it uses as much as digits as its factorization.

19927041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642350.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 19927041 is about 4463.9714380807. The cubic root of 19927041 is about 271.1112908280. Note that the first 3 decimals are identical.

The spelling of 19927041 in words is "nineteen million, nine hundred twenty-seven thousand, forty-one".

Divisors: 1 3 6642347 19927041