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243104313 = 3263308117
BaseRepresentation
bin11100111110101…
…11101000111001
3121221102222102110
432133113220321
5444213314223
640042322533
76011231634
oct1637275071
9557388373
10243104313
11115253961
12694b9449
133b499b0a
1424402c1b
1516520d93
hexe7d7a39

243104313 has 8 divisors (see below), whose sum is σ = 325372608. Its totient is φ = 161452784.

The previous prime is 243104311. The next prime is 243104353. The reversal of 243104313 is 313401342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243104313 - 21 = 243104311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243104313.

It is not an unprimeable number, because it can be changed into a prime (243104311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153270 + ... + 154847.

It is an arithmetic number, because the mean of its divisors is an integer number (40671576).

Almost surely, 2243104313 is an apocalyptic number.

It is an amenable number.

243104313 is a deficient number, since it is larger than the sum of its proper divisors (82268295).

243104313 is a wasteful number, since it uses less digits than its factorization.

243104313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308383.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 243104313 is about 15591.8027501633. The cubic root of 243104313 is about 624.1144262339.

Adding to 243104313 its reverse (313401342), we get a palindrome (556505655).

The spelling of 243104313 in words is "two hundred forty-three million, one hundred four thousand, three hundred thirteen".

Divisors: 1 3 263 789 308117 924351 81034771 243104313