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3102313 = 17182489
BaseRepresentation
bin1011110101011001101001
312211121120111
423311121221
51243233223
6150254321
735240434
oct13653151
95747514
103102313
1118298a5
1210573a1
138480b6
145aa81b
1541430d
hex2f5669

3102313 has 4 divisors (see below), whose sum is σ = 3284820. Its totient is φ = 2919808.

The previous prime is 3102311. The next prime is 3102317. The reversal of 3102313 is 3132013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3132013 = 3784649.

It can be written as a sum of positive squares in 2 ways, for example, as 994009 + 2108304 = 997^2 + 1452^2 .

It is a cyclic number.

It is not a de Polignac number, because 3102313 - 21 = 3102311 is a prime.

It is a Duffinian number.

3102313 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3102293 and 3102302.

It is not an unprimeable number, because it can be changed into a prime (3102311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91228 + ... + 91261.

It is an arithmetic number, because the mean of its divisors is an integer number (821205).

Almost surely, 23102313 is an apocalyptic number.

It is an amenable number.

3102313 is a deficient number, since it is larger than the sum of its proper divisors (182507).

3102313 is a wasteful number, since it uses less digits than its factorization.

3102313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182506.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 3102313 is about 1761.3384115496. The cubic root of 3102313 is about 145.8462289186.

Adding to 3102313 its reverse (3132013), we get a palindrome (6234326).

The spelling of 3102313 in words is "three million, one hundred two thousand, three hundred thirteen".

Divisors: 1 17 182489 3102313