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16939029819 = 319861284293
BaseRepresentation
bin11111100011010010…
…10001010100111011
31121201111202212112210
433301221101110323
5234142342423234
611440502110203
71136523243405
oct176151212473
947644685483
1016939029819
1172027058a8
123348a1b363
13179c49698a
14b6996bb75
15692181be9
hex3f1a5153b

16939029819 has 8 divisors (see below), whose sum is σ = 22586589712. Its totient is φ = 11292078240.

The previous prime is 16939029817. The next prime is 16939029839. The reversal of 16939029819 is 91892093961.

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

It is not a de Polignac number, because 16939029819 - 21 = 16939029817 is a prime.

It is a super-2 number, since 2×169390298192 (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 (16939029817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82564 + ... + 201729.

It is an arithmetic number, because the mean of its divisors is an integer number (2823323714).

Almost surely, 216939029819 is an apocalyptic number.

16939029819 is a deficient number, since it is larger than the sum of its proper divisors (5647559893).

16939029819 is a wasteful number, since it uses less digits than its factorization.

16939029819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304157.

The product of its (nonzero) digits is 1889568, while the sum is 57.

The spelling of 16939029819 in words is "sixteen billion, nine hundred thirty-nine million, twenty-nine thousand, eight hundred nineteen".

Divisors: 1 3 19861 59583 284293 852879 5646343273 16939029819