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19342280 = 235483557
BaseRepresentation
bin100100111001…
…0001111001000
31100101200121202
41021302033020
514422423110
61530323332
7323256326
oct111621710
940350552
1019342280
11aa11161
126589548
134012c49
1427d6d16
151a710a5
hex12723c8

19342280 has 16 divisors (see below), whose sum is σ = 43520220. Its totient is φ = 7736896.

The previous prime is 19342273. The next prime is 19342289. The reversal of 19342280 is 8224391.

It can be written as a sum of positive squares in 2 ways, for example, as 18679684 + 662596 = 4322^2 + 814^2 .

It is not an unprimeable number, because it can be changed into a prime (19342289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241739 + ... + 241818.

Almost surely, 219342280 is an apocalyptic number.

19342280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19342280 is an abundant number, since it is smaller than the sum of its proper divisors (24177940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19342280 is a wasteful number, since it uses less digits than its factorization.

19342280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483568 (or 483564 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 19342280 is about 4397.9859026604. The cubic root of 19342280 is about 268.4329898305.

The spelling of 19342280 in words is "nineteen million, three hundred forty-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 483557 967114 1934228 2417785 3868456 4835570 9671140 19342280