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13875038447825 = 5217239136598951
BaseRepresentation
bin1100100111101000100010…
…1111001110100011010001
31211010102220021201101012102
43021322020233032203101
53304312034320312300
645302034335210145
72631303246602342
oct311721057164321
954112807641172
1013875038447825
11446a409533a25
1216810aa376955
13798544b801b9
1435d7ac1d20c9
15190dc55880d5
hexc9e88bce8d1

13875038447825 has 24 divisors (see below), whose sum is σ = 18293331651840. Its totient is φ = 10403376032000.

The previous prime is 13875038447779. The next prime is 13875038447849. The reversal of 13875038447825 is 52874483057831.

13875038447825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13875038447825 - 212 = 13875038443729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68197901 + ... + 68401050.

It is an arithmetic number, because the mean of its divisors is an integer number (762222152160).

Almost surely, 213875038447825 is an apocalyptic number.

It is an amenable number.

13875038447825 is a deficient number, since it is larger than the sum of its proper divisors (4418293204015).

13875038447825 is a wasteful number, since it uses less digits than its factorization.

13875038447825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136599217 (or 136599212 counting only the distinct ones).

The product of its (nonzero) digits is 180633600, while the sum is 65.

The spelling of 13875038447825 in words is "thirteen trillion, eight hundred seventy-five billion, thirty-eight million, four hundred forty-seven thousand, eight hundred twenty-five".

Divisors: 1 5 17 25 85 239 425 1195 4063 5975 20315 101575 136598951 682994755 2322182167 3414973775 11610910835 32647149289 58054554175 163235746445 555001537913 816178732225 2775007689565 13875038447825