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65243345 = 515838243
BaseRepresentation
bin1111100011100…
…0100011010001
311112202201001012
43320320203101
5113200241340
610250220305
71421362556
oct370704321
9145681035
1065243345
1133912322
1219a24695
131069473b
148944a2d
155adb565
hex3e388d1

65243345 has 8 divisors (see below), whose sum is σ = 78350976. Its totient is φ = 52155376.

The previous prime is 65243323. The next prime is 65243351. The reversal of 65243345 is 54334256.

65243345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65243345 - 28 = 65243089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3794 + ... + 12036.

It is an arithmetic number, because the mean of its divisors is an integer number (9793872).

Almost surely, 265243345 is an apocalyptic number.

It is an amenable number.

65243345 is a deficient number, since it is larger than the sum of its proper divisors (13107631).

65243345 is a wasteful number, since it uses less digits than its factorization.

65243345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9831.

The product of its digits is 43200, while the sum is 32.

The square root of 65243345 is about 8077.3352660392. The cubic root of 65243345 is about 402.5737066515.

The spelling of 65243345 in words is "sixty-five million, two hundred forty-three thousand, three hundred forty-five".

Divisors: 1 5 1583 7915 8243 41215 13048669 65243345