Base | Representation |
---|---|
bin | 110100100111110000010011… |
… | …010101001111011101100001 |
3 | 1010100102112011110100122212211 |
4 | 310213300103111033131201 |
5 | 220313223320040104441 |
6 | 2140113344220122121 |
7 | 66514201423251214 |
oct | 6447602325173541 |
9 | 1110375143318784 |
10 | 231430342113121 |
11 | 67817069823338 |
12 | 21b58901396341 |
13 | 9c19a31521488 |
14 | 412140723b77b |
15 | 1bb507ab7da81 |
hex | d27c1354f761 |
231430342113121 has 8 divisors (see below), whose sum is σ = 241524915755904. Its totient is φ = 221338467208320.
The previous prime is 231430342113077. The next prime is 231430342113127. The reversal of 231430342113121 is 121311243034132.
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 231430342113121 - 27 = 231430342112993 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (231430342113127) 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, 674509245 + ... + 674852266.
It is an arithmetic number, because the mean of its divisors is an integer number (30190614469488).
Almost surely, 2231430342113121 is an apocalyptic number.
It is an amenable number.
231430342113121 is a deficient number, since it is larger than the sum of its proper divisors (10094573642783).
231430342113121 is a wasteful number, since it uses less digits than its factorization.
231430342113121 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1349368991.
The product of its (nonzero) digits is 10368, while the sum is 31.
Adding to 231430342113121 its reverse (121311243034132), we get a palindrome (352741585147253).
The spelling of 231430342113121 in words is "two hundred thirty-one trillion, four hundred thirty billion, three hundred forty-two million, one hundred thirteen thousand, one hundred twenty-one".
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