Base | Representation |
---|---|
bin | 111101000001101111… |
… | …1001010111100101111 |
3 | 110112021110010002002010 |
4 | 1322003133022330233 |
5 | 4121400040133422 |
6 | 140112243332303 |
7 | 12316444111050 |
oct | 1720337127457 |
9 | 415243102063 |
10 | 131055005487 |
11 | 5064215239a |
12 | 21496081093 |
13 | c487630533 |
14 | 64b3654727 |
15 | 36207acb0c |
hex | 1e837caf2f |
131055005487 has 16 divisors (see below), whose sum is σ = 199748178432. Its totient is φ = 74871582240.
The previous prime is 131055005483. The next prime is 131055005489. The reversal of 131055005487 is 784500550131.
It is not a de Polignac number, because 131055005487 - 22 = 131055005483 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131055005483) 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 15 ways as a sum of consecutive naturals, for example, 612963 + ... + 798644.
It is an arithmetic number, because the mean of its divisors is an integer number (12484261152).
Almost surely, 2131055005487 is an apocalyptic number.
131055005487 is a deficient number, since it is larger than the sum of its proper divisors (68693172945).
131055005487 is a wasteful number, since it uses less digits than its factorization.
131055005487 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1416038.
The product of its (nonzero) digits is 84000, while the sum is 39.
The spelling of 131055005487 in words is "one hundred thirty-one billion, fifty-five million, five thousand, four hundred eighty-seven".
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