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313430243 = 7315924481
BaseRepresentation
bin10010101011101…
…001000011100011
3210211202220110112
4102223221003203
51120214231433
651033521535
710524053540
oct2253510343
9724686415
10313430243
11150a17865
1288b732ab
134cc20aa9
142d8abbc7
151c7b3348
hex12ae90e3

313430243 has 16 divisors (see below), whose sum is σ = 376043520. Its totient is φ = 255571200.

The previous prime is 313430203. The next prime is 313430267. The reversal of 313430243 is 342034313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313430243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313430203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 563 + ... + 25043.

It is an arithmetic number, because the mean of its divisors is an integer number (23502720).

Almost surely, 2313430243 is an apocalyptic number.

313430243 is a deficient number, since it is larger than the sum of its proper divisors (62613277).

313430243 is a wasteful number, since it uses less digits than its factorization.

313430243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24578.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 313430243 is about 17703.9612234099. The cubic root of 313430243 is about 679.2770885755.

Adding to 313430243 its reverse (342034313), we get a palindrome (655464556).

The spelling of 313430243 in words is "three hundred thirteen million, four hundred thirty thousand, two hundred forty-three".

Divisors: 1 7 31 59 217 413 1829 12803 24481 171367 758911 1444379 5312377 10110653 44775749 313430243