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320245141 = 1798872017
BaseRepresentation
bin10011000101101…
…000110110010101
3211022121010202011
4103011220312111
51123440321031
651435544221
710636016206
oct2305506625
9738533664
10320245141
11154851a07
128b2bb071
1351468988
14307635ad
151d1ac6b1
hex13168d95

320245141 has 8 divisors (see below), whose sum is σ = 322557120. Its totient is φ = 317939328.

The previous prime is 320245139. The next prime is 320245147. The reversal of 320245141 is 141542023.

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 320245141 - 21 = 320245139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320245147) 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, 157765 + ... + 159781.

It is an arithmetic number, because the mean of its divisors is an integer number (40319640).

Almost surely, 2320245141 is an apocalyptic number.

It is an amenable number.

320245141 is a deficient number, since it is larger than the sum of its proper divisors (2311979).

320245141 is a wasteful number, since it uses less digits than its factorization.

320245141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 320245141 is about 17895.3944075005. The cubic root of 320245141 is about 684.1649945948.

Adding to 320245141 its reverse (141542023), we get a palindrome (461787164).

The spelling of 320245141 in words is "three hundred twenty million, two hundred forty-five thousand, one hundred forty-one".

Divisors: 1 179 887 2017 158773 361043 1789079 320245141