Base | Representation |
---|---|
bin | 110100100100011100110101… |
… | …100000110011010010110011 |
3 | 1010022121211002021021011002120 |
4 | 310210130311200303102303 |
5 | 220301013310232132011 |
6 | 2135421153244245323 |
7 | 66461612603562036 |
oct | 6444346540632263 |
9 | 1108554067234076 |
10 | 231203282302131 |
11 | 67739841447687 |
12 | 21b208b3540843 |
13 | 9c014b700c829 |
14 | 41144273c901d |
15 | 1bae1dbcaca06 |
hex | d247358334b3 |
231203282302131 has 8 divisors (see below), whose sum is σ = 308271897570000. Its totient is φ = 154135094284512.
The previous prime is 231203282302121. The next prime is 231203282302151. The reversal of 231203282302131 is 131203282302132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231203282302131 - 210 = 231203282301107 is a prime.
It is a super-2 number, since 2×2312032823021312 (a number of 30 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 231203282302092 and 231203282302101.
It is not an unprimeable number, because it can be changed into a prime (231203282302121) 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 7 ways as a sum of consecutive naturals, for example, 105547756 + ... + 107715993.
It is an arithmetic number, because the mean of its divisors is an integer number (38533987196250).
Almost surely, 2231203282302131 is an apocalyptic number.
231203282302131 is a deficient number, since it is larger than the sum of its proper divisors (77068615267869).
231203282302131 is a wasteful number, since it uses less digits than its factorization.
231203282302131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 213625125.
The product of its (nonzero) digits is 20736, while the sum is 33.
Subtracting from 231203282302131 its reverse (131203282302132), we obtain a palindrome (99999999999999).
The spelling of 231203282302131 in words is "two hundred thirty-one trillion, two hundred three billion, two hundred eighty-two million, three hundred two thousand, one hundred thirty-one".
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