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17139730188 = 2237253992
BaseRepresentation
bin11111111011001101…
…11000011100001100
31122020111102111200210
433331212320130030
5240100232331223
611512431522420
71144511205600
oct177546703414
948214374623
1017139730188
1172a5a26a79
1233a4089410
131801c379a9
14b88493500
156a4ac8893
hex3fd9b870c

17139730188 has 54 divisors (see below), whose sum is σ = 46530743196. Its totient is φ = 4896158736.

The previous prime is 17139730177. The next prime is 17139730189. The reversal of 17139730188 is 88103793171.

It is not an unprimeable number, because it can be changed into a prime (17139730189) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3171913 + ... + 3177311.

Almost surely, 217139730188 is an apocalyptic number.

It is an amenable number.

17139730188 is an abundant number, since it is smaller than the sum of its proper divisors (29391013008).

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

17139730188 is an frugal number, since it uses more digits than its factorization.

17139730188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10819 (or 5411 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 48.

Multiplying 17139730188 by its sum of digits (48), we get a square (822707049024 = 9070322).

The spelling of 17139730188 in words is "seventeen billion, one hundred thirty-nine million, seven hundred thirty thousand, one hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 5399 10798 16197 21596 32394 37793 64788 75586 113379 151172 226758 264551 453516 529102 793653 1058204 1587306 3174612 29149201 58298402 87447603 116596804 174895206 204044407 349790412 408088814 612133221 816177628 1224266442 1428310849 2448532884 2856621698 4284932547 5713243396 8569865094 17139730188