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16765375393 = 1343241124447
BaseRepresentation
bin11111001110100101…
…10101001110100001
31121021102000022110101
433213102311032201
5233313414003033
611411340102401
71132314224314
oct174722651641
947242008411
1016765375393
117123687748
1232ba834a01
131772505190
14b5088697b
15681ccd97d
hex3e74b53a1

16765375393 has 16 divisors (see below), whose sum is σ = 18551712256. Its totient is φ = 15052988160.

The previous prime is 16765375379. The next prime is 16765375423. The reversal of 16765375393 is 39357356761.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16765375393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16765375343) 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 15 ways as a sum of consecutive naturals, for example, 72496 + ... + 196942.

It is an arithmetic number, because the mean of its divisors is an integer number (1159482016).

Almost surely, 216765375393 is an apocalyptic number.

16765375393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16765375393 is a deficient number, since it is larger than the sum of its proper divisors (1786336863).

16765375393 is a wasteful number, since it uses less digits than its factorization.

16765375393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124744.

The product of its digits is 10716300, while the sum is 55.

The spelling of 16765375393 in words is "sixteen billion, seven hundred sixty-five million, three hundred seventy-five thousand, three hundred ninety-three".

Divisors: 1 13 43 241 559 3133 10363 124447 134719 1617811 5351221 29991727 69565873 389892451 1289644261 16765375393