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16867000321 = 194139214481
BaseRepresentation
bin11111011010101101…
…00000000000000001
31121112111020101122121
433231112200000001
5234020423002241
611425410204241
71134660065023
oct175526400001
947474211577
1016867000321
117175a88a96
123328883681
13178a597482
14b6017c013
1568aba4ad1
hex3ed5a0001

16867000321 has 8 divisors (see below), whose sum is σ = 17759109600. Its totient is φ = 15975328320.

The previous prime is 16867000289. The next prime is 16867000333. The reversal of 16867000321 is 12300076861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16867000321 - 25 = 16867000289 is a prime.

It is a super-2 number, since 2×168670003212 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16867000361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28600 + ... + 185881.

It is an arithmetic number, because the mean of its divisors is an integer number (2219888700).

It is a Proth number, since it is equal to 128685 ⋅ 217 + 1 and 128685 < 217.

Almost surely, 216867000321 is an apocalyptic number.

It is an amenable number.

16867000321 is a deficient number, since it is larger than the sum of its proper divisors (892109279).

16867000321 is a wasteful number, since it uses less digits than its factorization.

16867000321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218639.

The product of its (nonzero) digits is 12096, while the sum is 34.

It can be divided in two parts, 1686 and 7000321, that added together give a palindrome (7002007).

The spelling of 16867000321 in words is "sixteen billion, eight hundred sixty-seven million, three hundred twenty-one", and thus it is an aban number.

Divisors: 1 19 4139 78641 214481 4075139 887736859 16867000321