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19214105 = 527713873
BaseRepresentation
bin100100101001…
…0111100011001
31100011011210112
41021102330121
514404322410
61523454105
7322213541
oct111227431
940134715
1019214105
11a933929
126527335
133c997c1
1427a2321
151a48105
hex1252f19

19214105 has 8 divisors (see below), whose sum is σ = 23141832. Its totient is φ = 15314688.

The previous prime is 19214101. The next prime is 19214119. The reversal of 19214105 is 50141291.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 300304 + 18913801 = 548^2 + 4349^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 19214105 - 22 = 19214101 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19214101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5552 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (2892729).

Almost surely, 219214105 is an apocalyptic number.

It is an amenable number.

19214105 is a deficient number, since it is larger than the sum of its proper divisors (3927727).

19214105 is a wasteful number, since it uses less digits than its factorization.

19214105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14155.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 19214105 is about 4383.3896701069. The cubic root of 19214105 is about 267.8387358695.

Adding to 19214105 its reverse (50141291), we get a palindrome (69355396).

The spelling of 19214105 in words is "nineteen million, two hundred fourteen thousand, one hundred five".

Divisors: 1 5 277 1385 13873 69365 3842821 19214105