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19480027 = 72782861
BaseRepresentation
bin100101001001…
…1110111011011
31100122200120111
41022103313123
514441330102
61533305151
7324402040
oct112236733
940580514
1019480027
11aaa56a6
1266351b7
134060858
1428311c7
151a9bcd7
hex1293ddb

19480027 has 4 divisors (see below), whose sum is σ = 22262896. Its totient is φ = 16697160.

The previous prime is 19480007. The next prime is 19480051. The reversal of 19480027 is 72008491.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-19480027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19480007) 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, 1391424 + ... + 1391437.

It is an arithmetic number, because the mean of its divisors is an integer number (5565724).

Almost surely, 219480027 is an apocalyptic number.

19480027 is a deficient number, since it is larger than the sum of its proper divisors (2782869).

19480027 is an equidigital number, since it uses as much as digits as its factorization.

19480027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782868.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 19480027 is about 4413.6183568587. The cubic root of 19480027 is about 269.0687027109.

The spelling of 19480027 in words is "nineteen million, four hundred eighty thousand, twenty-seven".

Divisors: 1 7 2782861 19480027