Base | Representation |
---|---|
bin | 110100100001111100011111… |
… | …111001101011010011011101 |
3 | 1010022000100201001110111021200 |
4 | 310201330133321223103131 |
5 | 220240203213441014123 |
6 | 2135210122022550113 |
7 | 66443306360124012 |
oct | 6441743771532335 |
9 | 1108010631414250 |
10 | 231031121032413 |
11 | 67682825943599 |
12 | 21ab3466b98339 |
13 | 9bbb1ab394a30 |
14 | 4109d746b7709 |
15 | 1ba99b2846143 |
hex | d21f1fe6b4dd |
231031121032413 has 24 divisors (see below), whose sum is σ = 359382697101792. Its totient is φ = 142172620439328.
The previous prime is 231031121032381. The next prime is 231031121032493. The reversal of 231031121032413 is 314230121130132.
231031121032413 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 3 + 1 + 1 + 210 + 32 + 413 = 666.
It is not a de Polignac number, because 231031121032413 - 25 = 231031121032381 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231031121032493) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (29) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45429570 + ... + 50258412.
It is an arithmetic number, because the mean of its divisors is an integer number (14974279045908).
Almost surely, 2231031121032413 is an apocalyptic number.
It is an amenable number.
231031121032413 is a deficient number, since it is larger than the sum of its proper divisors (128351576069379).
231031121032413 is a wasteful number, since it uses less digits than its factorization.
231031121032413 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5237785 (or 5237782 counting only the distinct ones).
The product of its (nonzero) digits is 2592, while the sum is 27.
Adding to 231031121032413 its reverse (314230121130132), we get a palindrome (545261242162545).
The spelling of 231031121032413 in words is "two hundred thirty-one trillion, thirty-one billion, one hundred twenty-one million, thirty-two thousand, four hundred thirteen".
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