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13819389385 = 515118303827
BaseRepresentation
bin11001101111011001…
…10010010111001001
31022200002121201101111
430313230302113021
5211300230430020
610203141250321
7666312604654
oct146754622711
938602551344
1013819389385
11595175986a
1228181039a1
1313c30830a9
1495150089b
1555d358d5a
hex337b325c9

13819389385 has 8 divisors (see below), whose sum is σ = 16693091136. Its totient is φ = 10982295600.

The previous prime is 13819389383. The next prime is 13819389427. The reversal of 13819389385 is 58398391831.

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

It is not a de Polignac number, because 13819389385 - 21 = 13819389383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13819389383) 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, 9151159 + ... + 9152668.

It is an arithmetic number, because the mean of its divisors is an integer number (2086636392).

Almost surely, 213819389385 is an apocalyptic number.

It is an amenable number.

13819389385 is a deficient number, since it is larger than the sum of its proper divisors (2873701751).

13819389385 is a wasteful number, since it uses less digits than its factorization.

13819389385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18303983.

The product of its digits is 5598720, while the sum is 58.

The spelling of 13819389385 in words is "thirteen billion, eight hundred nineteen million, three hundred eighty-nine thousand, three hundred eighty-five".

Divisors: 1 5 151 755 18303827 91519135 2763877877 13819389385