Base | Representation |
---|---|
bin | 111101011110100… |
… | …001101000000111 |
3 | 2122212210011121000 |
4 | 331132201220013 |
5 | 4103020142411 |
6 | 250202424343 |
7 | 34362600513 |
oct | 7536415007 |
9 | 2585704530 |
10 | 1031412231 |
11 | 48a229303 |
12 | 2495020b3 |
13 | 1358b7bc5 |
14 | 9ada7143 |
15 | 60838956 |
hex | 3d7a1a07 |
1031412231 has 16 divisors (see below), whose sum is σ = 1580709600. Its totient is φ = 663897024.
The previous prime is 1031412223. The next prime is 1031412257. The reversal of 1031412231 is 1322141301.
It is not a de Polignac number, because 1031412231 - 23 = 1031412223 is a prime.
It is a super-2 number, since 2×10314122312 = 2127622380512794722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1031412281) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657846 + ... + 659411.
It is an arithmetic number, because the mean of its divisors is an integer number (98794350).
Almost surely, 21031412231 is an apocalyptic number.
1031412231 is a deficient number, since it is larger than the sum of its proper divisors (549297369).
1031412231 is a wasteful number, since it uses less digits than its factorization.
1031412231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1317295 (or 1317289 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 1031412231 is about 32115.6072805731. The cubic root of 1031412231 is about 1010.3629813199.
Adding to 1031412231 its reverse (1322141301), we get a palindrome (2353553532).
The spelling of 1031412231 in words is "one billion, thirty-one million, four hundred twelve thousand, two hundred thirty-one".
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