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13893951895 = 5231007911987
BaseRepresentation
bin11001111000010010…
…01110000110010111
31022212021220212220221
430330021032012113
5211423322430040
610214403335211
71001206433245
oct147411160627
938767825827
1013893951895
11598a85677a
122839081507
13140565b515
1495b38d795
15564b8674a
hex33c24e197

13893951895 has 16 divisors (see below), whose sum is σ = 17400821760. Its totient is φ = 10629951904.

The previous prime is 13893951889. The next prime is 13893951917. The reversal of 13893951895 is 59815939831.

13893951895 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13893951895 - 23 = 13893951887 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153092 + ... + 1165078.

It is an arithmetic number, because the mean of its divisors is an integer number (1087551360).

Almost surely, 213893951895 is an apocalyptic number.

13893951895 is a deficient number, since it is larger than the sum of its proper divisors (3506869865).

13893951895 is a wasteful number, since it uses less digits than its factorization.

13893951895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22094.

The product of its digits is 10497600, while the sum is 61.

The spelling of 13893951895 in words is "thirteen billion, eight hundred ninety-three million, nine hundred fifty-one thousand, eight hundred ninety-five".

Divisors: 1 5 23 115 10079 11987 50395 59935 231817 275701 1159085 1378505 120816973 604084865 2778790379 13893951895