Base | Representation |
---|---|
bin | 1101011101011101001… |
… | …0100011000001000000 |
3 | 211002212212200211111111 |
4 | 3113113102203001000 |
5 | 12242042234331034 |
6 | 254122123453104 |
7 | 22464321011305 |
oct | 3272722430100 |
9 | 732785624444 |
10 | 231245230144 |
11 | 8a0859a4055 |
12 | 38997687194 |
13 | 18a63683a36 |
14 | b299a710ac |
15 | 6036570364 |
hex | 35d74a3040 |
231245230144 has 56 divisors (see below), whose sum is σ = 461033693120. Its totient is φ = 115080362496.
The previous prime is 231245230127. The next prime is 231245230147. The reversal of 231245230144 is 441032542132.
It is not an unprimeable number, because it can be changed into a prime (231245230147) 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, 14276002 + ... + 14292190.
It is an arithmetic number, because the mean of its divisors is an integer number (8232744520).
Almost surely, 2231245230144 is an apocalyptic number.
It is an amenable number.
231245230144 is a deficient number, since it is larger than the sum of its proper divisors (229788462976).
231245230144 is a wasteful number, since it uses less digits than its factorization.
231245230144 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17235 (or 17225 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 31.
Adding to 231245230144 its reverse (441032542132), we get a palindrome (672277772276).
The spelling of 231245230144 in words is "two hundred thirty-one billion, two hundred forty-five million, two hundred thirty thousand, one hundred forty-four".
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