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313530244 = 2278382561
BaseRepresentation
bin10010101100000…
…001011110000100
3210211221222122021
4102230001132010
51120230431434
651040012524
710524651226
oct2254013604
9724858567
10313530244
11150a85a05
1289001144
134cc57471
142d8d6416
151c7d2cb4
hex12b01784

313530244 has 6 divisors (see below), whose sum is σ = 548677934. Its totient is φ = 156765120.

The previous prime is 313530221. The next prime is 313530247. The reversal of 313530244 is 442035313.

It can be written as a sum of positive squares in only one way, i.e., 275560000 + 37970244 = 16600^2 + 6162^2 .

It is a super-3 number, since 3×3135302443 (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (313530247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39191277 + ... + 39191284.

Almost surely, 2313530244 is an apocalyptic number.

It is an amenable number.

313530244 is a deficient number, since it is larger than the sum of its proper divisors (235147690).

313530244 is a wasteful number, since it uses less digits than its factorization.

313530244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78382565 (or 78382563 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 313530244 is about 17706.7852531170. The cubic root of 313530244 is about 679.3493227931.

Adding to 313530244 its reverse (442035313), we get a palindrome (755565557).

The spelling of 313530244 in words is "three hundred thirteen million, five hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 78382561 156765122 313530244