Base | Representation |
---|---|
bin | 1101100111011100… |
… | …00010000101110101 |
3 | 200212110100102001001 |
4 | 12303232002011311 |
5 | 104432344444044 |
6 | 3205214003301 |
7 | 346103205412 |
oct | 66356020565 |
9 | 20773312031 |
10 | 7310156149 |
11 | 311143556a |
12 | 15001a6531 |
13 | 8c664b6aa |
14 | 4d4c15109 |
15 | 2cbb822d4 |
hex | 1b3b82175 |
7310156149 has 4 divisors (see below), whose sum is σ = 7310593836. Its totient is φ = 7309718464.
The previous prime is 7310156129. The next prime is 7310156153. The reversal of 7310156149 is 9416510137.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9416510137 = 17 ⋅553912361.
It can be written as a sum of positive squares in 2 ways, for example, as 2419951249 + 4890204900 = 49193^2 + 69930^2 .
It is a cyclic number.
It is not a de Polignac number, because 7310156149 - 229 = 6773285237 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7310156129) 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 3 ways as a sum of consecutive naturals, for example, 192754 + ... + 227539.
It is an arithmetic number, because the mean of its divisors is an integer number (1827648459).
Almost surely, 27310156149 is an apocalyptic number.
It is an amenable number.
7310156149 is a deficient number, since it is larger than the sum of its proper divisors (437687).
7310156149 is a wasteful number, since it uses less digits than its factorization.
7310156149 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 437686.
The product of its (nonzero) digits is 22680, while the sum is 37.
The square root of 7310156149 is about 85499.4511619812. The cubic root of 7310156149 is about 1940.7766179795.
The spelling of 7310156149 in words is "seven billion, three hundred ten million, one hundred fifty-six thousand, one hundred forty-nine".
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