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315038329 is a prime number
BaseRepresentation
bin10010110001110…
…001101001111001
3210221210121100021
4102301301221321
51121122211304
651132210441
710543532044
oct2261615171
9727717307
10315038329
11151915a61
1289609a21
1350364a18
142dba9c5b
151c9cea54
hex12c71a79

315038329 has 2 divisors, whose sum is σ = 315038330. Its totient is φ = 315038328.

The previous prime is 315038327. The next prime is 315038371. The reversal of 315038329 is 923830513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235561104 + 79477225 = 15348^2 + 8915^2 .

It is a cyclic number.

It is not a de Polignac number, because 315038329 - 21 = 315038327 is a prime.

It is a super-2 number, since 2×3150383292 = 198498297478224482, which contains 22 as substring.

Together with 315038327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 315038294 and 315038303.

It is not a weakly prime, because it can be changed into another prime (315038323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157519164 + 157519165.

It is an arithmetic number, because the mean of its divisors is an integer number (157519165).

Almost surely, 2315038329 is an apocalyptic number.

It is an amenable number.

315038329 is a deficient number, since it is larger than the sum of its proper divisors (1).

315038329 is an equidigital number, since it uses as much as digits as its factorization.

315038329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 315038329 is about 17749.3191137012. The cubic root of 315038329 is about 680.4368077297.

The spelling of 315038329 in words is "three hundred fifteen million, thirty-eight thousand, three hundred twenty-nine".