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245234065 = 5235720809
BaseRepresentation
bin11101001110111…
…11100110010001
3122002110011220011
432213133212101
51000234442230
640200114521
76035312056
oct1647374621
9562404804
10245234065
11116478a8a
126a165a41
133ba6431b
14247d902d
15167e1e2a
hexe9df991

245234065 has 8 divisors (see below), whose sum is σ = 294419880. Its totient is φ = 196094592.

The previous prime is 245234051. The next prime is 245234081. The reversal of 245234065 is 560432542.

It can be written as a sum of positive squares in 4 ways, for example, as 92416 + 245141649 = 304^2 + 15657^2 .

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 245234065 - 221 = 243136913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381 + ... + 22189.

It is an arithmetic number, because the mean of its divisors is an integer number (36802485).

Almost surely, 2245234065 is an apocalyptic number.

It is an amenable number.

245234065 is a deficient number, since it is larger than the sum of its proper divisors (49185815).

245234065 is a wasteful number, since it uses less digits than its factorization.

245234065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23171.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 245234065 is about 15659.9509897062. The cubic root of 245234065 is about 625.9316792679.

The spelling of 245234065 in words is "two hundred forty-five million, two hundred thirty-four thousand, sixty-five".

Divisors: 1 5 2357 11785 20809 104045 49046813 245234065