Base | Representation |
---|---|
bin | 110100100001111100101100… |
… | …011011100001000100110001 |
3 | 1010022000101020200222122011112 |
4 | 310201330230123201010301 |
5 | 220240204131243330001 |
6 | 2135210154532123105 |
7 | 66443314521562661 |
oct | 6441745433410461 |
9 | 1108011220878145 |
10 | 231031331230001 |
11 | 67682923561105 |
12 | 21ab3505466495 |
13 | 9bbb212aac7c3 |
14 | 4109d945921a1 |
15 | 1ba99c6016cbb |
hex | d21f2c6e1131 |
231031331230001 has 8 divisors (see below), whose sum is σ = 231635170950144. Its totient is φ = 230427494764560.
The previous prime is 231031331229989. The next prime is 231031331230019. The reversal of 231031331230001 is 100032133130132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 231031331230001 - 210 = 231031331228977 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (231031331230501) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218368655 + ... + 219424091.
It is an arithmetic number, because the mean of its divisors is an integer number (28954396368768).
Almost surely, 2231031331230001 is an apocalyptic number.
It is an amenable number.
231031331230001 is a deficient number, since it is larger than the sum of its proper divisors (603839720143).
231031331230001 is a wasteful number, since it uses less digits than its factorization.
231031331230001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1627351.
The product of its (nonzero) digits is 972, while the sum is 23.
Adding to 231031331230001 its reverse (100032133130132), we get a palindrome (331063464360133).
The spelling of 231031331230001 in words is "two hundred thirty-one trillion, thirty-one billion, three hundred thirty-one million, two hundred thirty thousand, one".
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