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19285427 = 713121031
BaseRepresentation
bin100100110010…
…0010110110011
31100021210122002
41021210112303
514414113202
61525204215
7322631510
oct111442663
940253562
1019285427
11a982477
12656066b
133cc30c5
1427c0307
151a5e302
hex12645b3

19285427 has 8 divisors (see below), whose sum is σ = 22209792. Its totient is φ = 16403400.

The previous prime is 19285423. The next prime is 19285451. The reversal of 19285427 is 72458291.

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 19285427 - 22 = 19285423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19285423) 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, 9599 + ... + 11432.

It is an arithmetic number, because the mean of its divisors is an integer number (2776224).

Almost surely, 219285427 is an apocalyptic number.

19285427 is a deficient number, since it is larger than the sum of its proper divisors (2924365).

19285427 is a wasteful number, since it uses less digits than its factorization.

19285427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21169.

The product of its digits is 40320, while the sum is 38.

The square root of 19285427 is about 4391.5176192291. The cubic root of 19285427 is about 268.1697289372.

The spelling of 19285427 in words is "nineteen million, two hundred eighty-five thousand, four hundred twenty-seven".

Divisors: 1 7 131 917 21031 147217 2755061 19285427