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19038249348 = 22310714827297
BaseRepresentation
bin10001101110110001…
…001010000110000100
31211010210211021101020
4101232301022012010
5302442242434343
612425051431140
71242533310066
oct215661120604
954123737336
1019038249348
11808a660578
123833a554b0
131a45370501
14cc8693736
157665e2b83
hex46ec4a184

19038249348 has 24 divisors (see below), whose sum is σ = 44837749152. Its totient is φ = 6286773504.

The previous prime is 19038249343. The next prime is 19038249361. The reversal of 19038249348 is 84394283091.

It is a self number, because there is not a number n which added to its sum of digits gives 19038249348.

It is not an unprimeable number, because it can be changed into a prime (19038249343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7412365 + ... + 7414932.

It is an arithmetic number, because the mean of its divisors is an integer number (1868239548).

Almost surely, 219038249348 is an apocalyptic number.

It is an amenable number.

19038249348 is an abundant number, since it is smaller than the sum of its proper divisors (25799499804).

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

19038249348 is a wasteful number, since it uses less digits than its factorization.

19038249348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14827411 (or 14827409 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 19038249348 in words is "nineteen billion, thirty-eight million, two hundred forty-nine thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 107 214 321 428 642 1284 14827297 29654594 44481891 59309188 88963782 177927564 1586520779 3173041558 4759562337 6346083116 9519124674 19038249348