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19016680320 = 2732511300137
BaseRepresentation
bin10001101101011110…
…111000001110000000
31211002022020110020100
4101231132320032000
5302421232232240
612423001242400
71242152054451
oct215536701600
954068213210
1019016680320
118079469430
123828793400
131a40a5ab81
14cc587b128
15764781e30
hex46d7b8380

19016680320 has 192 divisors, whose sum is σ = 71636937840. Its totient is φ = 4610088960.

The previous prime is 19016680307. The next prime is 19016680337. The reversal of 19016680320 is 2308661091.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86709 + ... + 213428.

Almost surely, 219016680320 is an apocalyptic number.

19016680320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19016680320 is an abundant number, since it is smaller than the sum of its proper divisors (52620257520).

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

19016680320 is a wasteful number, since it uses less digits than its factorization.

19016680320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300173 (or 300158 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The spelling of 19016680320 in words is "nineteen billion, sixteen million, six hundred eighty thousand, three hundred twenty".