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19284244 = 227298389
BaseRepresentation
bin100100110010…
…0000100010100
31100021202000021
41021210010110
514414043434
61525154524
7322625200
oct111440424
940252007
1019284244
11a9815a1
12655ba44
133cc26c5
1427bdb00
151a5dcb4
hex1264114

19284244 has 18 divisors (see below), whose sum is σ = 39257610. Its totient is φ = 8264592.

The previous prime is 19284229. The next prime is 19284247. The reversal of 19284244 is 44248291.

It can be written as a sum of positive squares in only one way, i.e., 10640644 + 8643600 = 3262^2 + 2940^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19284247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48999 + ... + 49390.

Almost surely, 219284244 is an apocalyptic number.

19284244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

19284244 is an abundant number, since it is smaller than the sum of its proper divisors (19973366).

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

19284244 is a wasteful number, since it uses less digits than its factorization.

19284244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98407 (or 98398 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 19284244 is about 4391.3829256853. The cubic root of 19284244 is about 268.1642455001.

The spelling of 19284244 in words is "nineteen million, two hundred eighty-four thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 49 98 196 98389 196778 393556 688723 1377446 2754892 4821061 9642122 19284244