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13904687752201 = 17240125472
BaseRepresentation
bin1100101001010110111111…
…1110010110010000001001
31211020021102121010002121201
43022111233332112100021
53310303300031032301
645323420402504201
72633403060536101
oct312255776262011
954207377102551
1013904687752201
114480a43818164
1216869a3965061
1379b28b6a759c
14360dc1c2c201
15191a5d4dc201
hexca56ff96409

13904687752201 has 27 divisors (see below), whose sum is σ = 14834770394997. Its totient is φ = 13030264665600.

The previous prime is 13904687752159. The next prime is 13904687752237. The reversal of 13904687752201 is 10225778640931.

The square root of 13904687752201 is 3728899.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9602282550025 + 4302405202176 = 3098755^2 + 2074224^2 .

It is not a de Polignac number, because 13904687752201 - 213 = 13904687744009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13904687752801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25419904210 + ... + 25419904756.

It is a 1-persistent number, because it is pandigital, but 2⋅13904687752201 = 27809375504402 is not.

Almost surely, 213904687752201 is an apocalyptic number.

13904687752201 is the 3728899-th square number.

13904687752201 is the 1864450-th centered octagonal number.

It is an amenable number.

13904687752201 is a deficient number, since it is larger than the sum of its proper divisors (930082642796).

13904687752201 is an frugal number, since it uses more digits than its factorization.

13904687752201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 13904687752201 in words is "thirteen trillion, nine hundred four billion, six hundred eighty-seven million, seven hundred fifty-two thousand, two hundred one".

Divisors: 1 17 289 401 547 6817 9299 115889 158083 160801 219347 299209 2733617 3728899 5086553 46471489 63391283 86471401 87958147 119982809 1495288499 2039707753 25419904483 34675031801 48113106409 817922808953 13904687752201