Base | Representation |
---|---|
bin | 111100010110000… |
… | …111010111010011 |
3 | 2121120001210021012 |
4 | 330112013113103 |
5 | 4033140232131 |
6 | 244243521135 |
7 | 34042341545 |
oct | 7426072723 |
9 | 2546053235 |
10 | 1012430291 |
11 | 47a543954 |
12 | 2430891ab |
13 | 13199cca2 |
14 | 98665695 |
15 | 5dd3952b |
hex | 3c5875d3 |
1012430291 has 12 divisors (see below), whose sum is σ = 1079456208. Its totient is φ = 949360512.
The previous prime is 1012430273. The next prime is 1012430299. The reversal of 1012430291 is 1920342101.
It is not a de Polignac number, because 1012430291 - 226 = 945321427 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1012430299) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73730 + ... + 86376.
It is an arithmetic number, because the mean of its divisors is an integer number (89954684).
Almost surely, 21012430291 is an apocalyptic number.
1012430291 is a deficient number, since it is larger than the sum of its proper divisors (67025917).
1012430291 is a wasteful number, since it uses less digits than its factorization.
1012430291 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12958 (or 12941 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 23.
The square root of 1012430291 is about 31818.7097632824. The cubic root of 1012430291 is about 1004.1263799023.
Adding to 1012430291 its reverse (1920342101), we get a palindrome (2932772392).
The spelling of 1012430291 in words is "one billion, twelve million, four hundred thirty thousand, two hundred ninety-one".
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