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16987112352 = 253278426147
BaseRepresentation
bin11111101001000001…
…01100001110100000
31121211212020201101100
433310200230032200
5234242200043402
611445340434400
71140646033620
oct176440541640
947755221340
1016987112352
117227866a31
123360b48a00
1317a9430392
14b720c6880
156964cd71c
hex3f482c3a0

16987112352 has 72 divisors (see below), whose sum is σ = 55208121696. Its totient is φ = 4853460096.

The previous prime is 16987112347. The next prime is 16987112353. The reversal of 16987112352 is 25321178961.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 16987112298 and 16987112307.

It is not an unprimeable number, because it can be changed into a prime (16987112353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4211058 + ... + 4215089.

It is an arithmetic number, because the mean of its divisors is an integer number (766779468).

Almost surely, 216987112352 is an apocalyptic number.

16987112352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16987112352 is an abundant number, since it is smaller than the sum of its proper divisors (38221009344).

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

16987112352 is a wasteful number, since it uses less digits than its factorization.

16987112352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8426170 (or 8426159 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The spelling of 16987112352 in words is "sixteen billion, nine hundred eighty-seven million, one hundred twelve thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 224 252 288 336 504 672 1008 2016 8426147 16852294 25278441 33704588 50556882 58983029 67409176 75835323 101113764 117966058 134818352 151670646 176949087 202227528 235932116 269636704 303341292 353898174 404455056 471864232 530847261 606682584 707796348 808910112 943728464 1061694522 1213365168 1415592696 1887456928 2123389044 2426730336 2831185392 4246778088 5662370784 8493556176 16987112352