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19297168 = 2411831321
BaseRepresentation
bin100100110011…
…1001110010000
31100022101201221
41021213032100
514420002133
61525334424
7323010652
oct111471620
940271657
1019297168
11a990280
126567414
133cc8557
1427c46d2
151a62a2d
hex1267390

19297168 has 40 divisors (see below), whose sum is σ = 41309856. Its totient is φ = 8659200.

The previous prime is 19297147. The next prime is 19297169. The reversal of 19297168 is 86179291.

It is not an unprimeable number, because it can be changed into a prime (19297169) 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 7 ways as a sum of consecutive naturals, for example, 13948 + ... + 15268.

Almost surely, 219297168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19297168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20654928).

19297168 is an abundant number, since it is smaller than the sum of its proper divisors (22012688).

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

19297168 is a wasteful number, since it uses less digits than its factorization.

19297168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423 (or 1417 counting only the distinct ones).

The product of its digits is 54432, while the sum is 43.

The square root of 19297168 is about 4392.8541974438. The cubic root of 19297168 is about 268.2241386226.

The spelling of 19297168 in words is "nineteen million, two hundred ninety-seven thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 44 83 88 166 176 332 664 913 1321 1328 1826 2642 3652 5284 7304 10568 14531 14608 21136 29062 58124 109643 116248 219286 232496 438572 877144 1206073 1754288 2412146 4824292 9648584 19297168