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19285504316 = 2213675535449
BaseRepresentation
bin10001111101100000…
…010111000100111100
31211210001002010102122
4101331200113010330
5303444042114231
612505403142112
71251625040051
oct217540270474
954701063378
1019285504316
1181a7189921
1238a2814938
131a84661620
14d0d457028
1577d18377b
hex47d81713c

19285504316 has 24 divisors (see below), whose sum is σ = 36888238800. Its totient is φ = 8768149632.

The previous prime is 19285504309. The next prime is 19285504351. The reversal of 19285504316 is 61340558291.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2764241 + ... + 2771208.

It is an arithmetic number, because the mean of its divisors is an integer number (1537009950).

Almost surely, 219285504316 is an apocalyptic number.

It is an amenable number.

19285504316 is a deficient number, since it is larger than the sum of its proper divisors (17602734484).

19285504316 is a wasteful number, since it uses less digits than its factorization.

19285504316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5535533 (or 5535531 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 19285504316 in words is "nineteen billion, two hundred eighty-five million, five hundred four thousand, three hundred sixteen".

Divisors: 1 2 4 13 26 52 67 134 268 871 1742 3484 5535449 11070898 22141796 71960837 143921674 287843348 370875083 741750166 1483500332 4821376079 9642752158 19285504316