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307204241 = 1811697261
BaseRepresentation
bin10010010011111…
…001000010010001
3210102001120222212
4102103321002101
51112121013431
650252241505
710420123121
oct2223710221
9712046885
10307204241
11148455103
1286a70295
134b850c76
142cb2ac81
151be8372b
hex124f9091

307204241 has 4 divisors (see below), whose sum is σ = 308901684. Its totient is φ = 305506800.

The previous prime is 307204213. The next prime is 307204253. The reversal of 307204241 is 142402703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47059600 + 260144641 = 6860^2 + 16129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-307204241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (307204201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 848450 + ... + 848811.

It is an arithmetic number, because the mean of its divisors is an integer number (77225421).

Almost surely, 2307204241 is an apocalyptic number.

It is an amenable number.

307204241 is a deficient number, since it is larger than the sum of its proper divisors (1697443).

307204241 is a wasteful number, since it uses less digits than its factorization.

307204241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697442.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 307204241 is about 17527.2428236731. The cubic root of 307204241 is about 674.7492372600.

Adding to 307204241 its reverse (142402703), we get a palindrome (449606944).

The spelling of 307204241 in words is "three hundred seven million, two hundred four thousand, two hundred forty-one".

Divisors: 1 181 1697261 307204241