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7071685763131 = 1123164531698859
BaseRepresentation
bin110011011101000000101…
…0100010110000000111011
3221001001020221101001112101
41212322001110112000323
51411330303023410011
623012404304124231
71326624652125163
oct146720124260073
927031227331471
107071685763131
1122870a3289190
12962659306677
133c3b1b0a6352
141a63b2aa95a3
15c3e3dd002c1
hex66e8151603b

7071685763131 has 16 divisors (see below), whose sum is σ = 8050476222720. Its totient is φ = 6148914599520.

The previous prime is 7071685763123. The next prime is 7071685763141. The reversal of 7071685763131 is 1313675861707.

It is a happy number.

It is not a de Polignac number, because 7071685763131 - 23 = 7071685763123 is a prime.

It is a super-2 number, since 2×70716857631312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7071685763141) 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, 3313180 + ... + 5012038.

It is an arithmetic number, because the mean of its divisors is an integer number (503154763920).

Almost surely, 27071685763131 is an apocalyptic number.

7071685763131 is a deficient number, since it is larger than the sum of its proper divisors (978790459589).

7071685763131 is a wasteful number, since it uses less digits than its factorization.

7071685763131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715346.

The product of its (nonzero) digits is 4445280, while the sum is 55.

It can be divided in two parts, 707168576 and 3131, that added together give a palindrome (707171707).

The spelling of 7071685763131 in words is "seven trillion, seventy-one billion, six hundred eighty-five million, seven hundred sixty-three thousand, one hundred thirty-one".

Divisors: 1 11 23 253 16453 180983 378419 1698859 4162609 18687449 39073757 429811327 27951327127 307464598397 642880523921 7071685763131