Base | Representation |
---|---|
bin | 1111101001001… |
… | …11000111111000 |
3 | 100010221021210122 |
4 | 13310213013320 |
5 | 232043412443 |
6 | 21004432412 |
7 | 3152312210 |
oct | 764470770 |
9 | 303837718 |
10 | 131232248 |
11 | 68093804 |
12 | 37b48708 |
13 | 2125a624 |
14 | 13601240 |
15 | b7c3968 |
hex | 7d271f8 |
131232248 has 32 divisors (see below), whose sum is σ = 297756000. Its totient is φ = 52933632.
The previous prime is 131232209. The next prime is 131232251. The reversal of 131232248 is 842232131.
131232248 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67973 + ... + 69876.
It is an arithmetic number, because the mean of its divisors is an integer number (9304875).
Almost surely, 2131232248 is an apocalyptic number.
It is an amenable number.
131232248 is an abundant number, since it is smaller than the sum of its proper divisors (166523752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131232248 is a wasteful number, since it uses less digits than its factorization.
131232248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 137879 (or 137875 counting only the distinct ones).
The product of its digits is 2304, while the sum is 26.
The square root of 131232248 is about 11455.6644503931. The cubic root of 131232248 is about 508.1752655418.
Adding to 131232248 its reverse (842232131), we get a palindrome (973464379).
The spelling of 131232248 in words is "one hundred thirty-one million, two hundred thirty-two thousand, two hundred forty-eight".
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