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16719347379 = 37319981649
BaseRepresentation
bin11111001001000110…
…01111111010110011
31121011012101211220010
433210203033322303
5233220123104004
611403013350003
71131215052000
oct174443177263
947135354803
1016719347379
1170aa6aa169
1232a7338303
131765b0a977
14b487048a7
1567cc3aa89
hex3e48cfeb3

16719347379 has 32 divisors (see below), whose sum is σ = 26128000000. Its totient is φ = 9505786752.

The previous prime is 16719347377. The next prime is 16719347387. The reversal of 16719347379 is 97374391761.

It is not a de Polignac number, because 16719347379 - 21 = 16719347377 is a prime.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16719347377) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163947 + ... + 245595.

It is an arithmetic number, because the mean of its divisors is an integer number (816500000).

Almost surely, 216719347379 is an apocalyptic number.

16719347379 is a deficient number, since it is larger than the sum of its proper divisors (9408652621).

16719347379 is an equidigital number, since it uses as much as digits as its factorization.

16719347379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81872 (or 81858 counting only the distinct ones).

The product of its digits is 6001128, while the sum is 57.

The spelling of 16719347379 in words is "sixteen billion, seven hundred nineteen million, three hundred forty-seven thousand, three hundred seventy-nine".

Divisors: 1 3 7 21 49 147 199 343 597 1029 1393 4179 9751 29253 68257 81649 204771 244947 571543 1714629 4000801 12002403 16248151 28005607 48744453 84016821 113737057 341211171 796159399 2388478197 5573115793 16719347379