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320245044 = 22373812441
BaseRepresentation
bin10011000101101…
…000110100110100
3211022121010121120
4103011220310310
51123440320134
651435543540
710636016010
oct2305506464
9738533546
10320245044
11154851929
128b2babb0
1351468912
1430763540
151d1ac649
hex13168d34

320245044 has 24 divisors (see below), whose sum is σ = 853987008. Its totient is φ = 91498560.

The previous prime is 320245001. The next prime is 320245063. The reversal of 320245044 is 440542023.

It is a congruent 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, 1906137 + ... + 1906304.

It is an arithmetic number, because the mean of its divisors is an integer number (35582792).

Almost surely, 2320245044 is an apocalyptic number.

It is an amenable number.

320245044 is an abundant number, since it is smaller than the sum of its proper divisors (533741964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320245044 is a wasteful number, since it uses less digits than its factorization.

320245044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812455 (or 3812453 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 320245044 is about 17895.3916973058. The cubic root of 320245044 is about 684.1649255186.

Adding to 320245044 its reverse (440542023), we get a palindrome (760787067).

The spelling of 320245044 in words is "three hundred twenty million, two hundred forty-five thousand, forty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 3812441 7624882 11437323 15249764 22874646 26687087 45749292 53374174 80061261 106748348 160122522 320245044