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16990315328 = 267311223381
BaseRepresentation
bin11111101001011001…
…11010001101000000
31121212002021110001002
433310230322031000
5234244010042303
611445533231132
71141015204010
oct176454721500
947762243032
1016990315328
117229654418
1233620324a8
1317a9cb222c
14b726bbc40
15696912788
hex3f4b3a340

16990315328 has 56 divisors (see below), whose sum is σ = 39774595584. Its totient is φ = 7046668800.

The previous prime is 16990315319. The next prime is 16990315343. The reversal of 16990315328 is 82351309961.

16990315328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

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, 597803 + ... + 625578.

Almost surely, 216990315328 is an apocalyptic number.

It is an amenable number.

16990315328 is an abundant number, since it is smaller than the sum of its proper divisors (22784280256).

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

16990315328 is a wasteful number, since it uses less digits than its factorization.

16990315328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223431 (or 1223421 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 16990315328 in words is "sixteen billion, nine hundred ninety million, three hundred fifteen thousand, three hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 64 112 124 217 224 248 434 448 496 868 992 1736 1984 3472 6944 13888 1223381 2446762 4893524 8563667 9787048 17127334 19574096 34254668 37924811 39148192 68509336 75849622 78296384 137018672 151699244 265473677 274037344 303398488 530947354 548074688 606796976 1061894708 1213593952 2123789416 2427187904 4247578832 8495157664 16990315328