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19525238928742 = 212378750990187
BaseRepresentation
bin1000111000010000100101…
…11011100011010101100110
32120010121001110202012211211
410130020102323203111212
510024400142131204432
6105305434304422034
74053436423344661
oct434102273432546
976117043665754
1019525238928742
116248675398338
12223415701791a
13ab82b7036831
144b70530186d8
1523cd69dbdd47
hex11c212ee3566

19525238928742 has 16 divisors (see below), whose sum is σ = 29312194882320. Its totient is φ = 9754507659168.

The previous prime is 19525238928677. The next prime is 19525238928761. The reversal of 19525238928742 is 24782983252591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216452173 + ... + 216542359.

It is an arithmetic number, because the mean of its divisors is an integer number (1832012180145).

Almost surely, 219525238928742 is an apocalyptic number.

19525238928742 is a deficient number, since it is larger than the sum of its proper divisors (9786955953578).

19525238928742 is a wasteful number, since it uses less digits than its factorization.

19525238928742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178935.

The product of its digits is 174182400, while the sum is 67.

The spelling of 19525238928742 in words is "nineteen trillion, five hundred twenty-five billion, two hundred thirty-eight million, nine hundred twenty-eight thousand, seven hundred forty-two".

Divisors: 1 2 1237 2474 87509 90187 175018 180374 108248633 111561319 216497266 223122638 7892174183 15784348366 9762619464371 19525238928742