Base | Representation |
---|---|
bin | 10010100111010… |
… | …101110110011001 |
3 | 210202122122011211 |
4 | 102213111312121 |
5 | 1114422144001 |
6 | 50553423121 |
7 | 10511350243 |
oct | 2247256631 |
9 | 722578154 |
10 | 312303001 |
11 | 15031795a |
12 | 8870aaa1 |
13 | 4c91799a |
14 | 2d697093 |
15 | 1c63e351 |
hex | 129d5d99 |
312303001 has 4 divisors (see below), whose sum is σ = 323072100. Its totient is φ = 301533904.
The previous prime is 312302941. The next prime is 312303007. The reversal of 312303001 is 100303213.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100303213 = 17 ⋅5900189.
It can be written as a sum of positive squares in 2 ways, for example, as 114169225 + 198133776 = 10685^2 + 14076^2 .
It is a cyclic number.
It is not a de Polignac number, because 312303001 - 213 = 312294809 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (312303007) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5384506 + ... + 5384563.
It is an arithmetic number, because the mean of its divisors is an integer number (80768025).
Almost surely, 2312303001 is an apocalyptic number.
It is an amenable number.
312303001 is a deficient number, since it is larger than the sum of its proper divisors (10769099).
312303001 is a wasteful number, since it uses less digits than its factorization.
312303001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10769098.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 312303001 is about 17672.0966780968. The cubic root of 312303001 is about 678.4617774925.
Adding to 312303001 its reverse (100303213), we get a palindrome (412606214).
It can be divided in two parts, 31 and 2303001, that added together give a palindrome (2303032).
The spelling of 312303001 in words is "three hundred twelve million, three hundred three thousand, one".
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