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13893926745 = 352301140253
BaseRepresentation
bin11001111000010010…
…00111111101011001
31022212021212121102110
430330021013331121
5211423321123440
610214403022533
71001206300026
oct147411077531
938767777373
1013893926745
11598a839896
12283906aa49
13140564cc3a
1495b38454d
15564b7e080
hex33c247f59

13893926745 has 16 divisors (see below), whose sum is σ = 22231801152. Its totient is φ = 7409588160.

The previous prime is 13893926743. The next prime is 13893926749. The reversal of 13893926745 is 54762939831.

It is not a de Polignac number, because 13893926745 - 21 = 13893926743 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13893926741) 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, 325039 + ... + 365291.

It is an arithmetic number, because the mean of its divisors is an integer number (1389487572).

Almost surely, 213893926745 is an apocalyptic number.

13893926745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13893926745 is a deficient number, since it is larger than the sum of its proper divisors (8337874407).

13893926745 is a wasteful number, since it uses less digits than its factorization.

13893926745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63272.

The product of its digits is 9797760, while the sum is 57.

The spelling of 13893926745 in words is "thirteen billion, eight hundred ninety-three million, nine hundred twenty-six thousand, seven hundred forty-five".

Divisors: 1 3 5 15 23011 40253 69033 115055 120759 201265 345165 603795 926261783 2778785349 4631308915 13893926745