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16677904319 = 21617717679
BaseRepresentation
bin11111000100001010…
…01001111110111111
31121001022102022200222
433202011021332333
5233124020414234
611354533211555
71130202563516
oct174205117677
947038368628
1016677904319
1170892733aa
123295490bbb
13175a35a34b
14b42dd767d
156792a142e
hex3e2149fbf

16677904319 has 4 divisors (see below), whose sum is σ = 16685624160. Its totient is φ = 16670184480.

The previous prime is 16677904307. The next prime is 16677904337. The reversal of 16677904319 is 91340977661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91340977661 = 220341462087.

It is a cyclic number.

It is not a de Polignac number, because 16677904319 - 220 = 16676855743 is a prime.

It is a super-2 number, since 2×166779043192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16677904819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3856679 + ... + 3861000.

It is an arithmetic number, because the mean of its divisors is an integer number (4171406040).

Almost surely, 216677904319 is an apocalyptic number.

16677904319 is a deficient number, since it is larger than the sum of its proper divisors (7719841).

16677904319 is an equidigital number, since it uses as much as digits as its factorization.

16677904319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7719840.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 16677904319 in words is "sixteen billion, six hundred seventy-seven million, nine hundred four thousand, three hundred nineteen".

Divisors: 1 2161 7717679 16677904319