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245048141 = 1322322741
BaseRepresentation
bin11101001101100…
…10001101001101
3122002002201212002
432212302031031
51000213020031
640152122045
76033606032
oct1646621515
9562081762
10245048141
11116361328
126a096325
133b9ca800
142478b389
15167a6ccb
hexe9b234d

245048141 has 18 divisors (see below), whose sum is σ = 277487658. Its totient is φ = 216284640.

The previous prime is 245048137. The next prime is 245048143. The reversal of 245048141 is 141840542.

It can be written as a sum of positive squares in 3 ways, for example, as 2592100 + 242456041 = 1610^2 + 15571^2 .

It is not a de Polignac number, because 245048141 - 22 = 245048137 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 (245048143) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 88031 + ... + 90771.

It is an arithmetic number, because the mean of its divisors is an integer number (15415981).

Almost surely, 2245048141 is an apocalyptic number.

It is an amenable number.

245048141 is a deficient number, since it is larger than the sum of its proper divisors (32439517).

245048141 is a wasteful number, since it uses less digits than its factorization.

245048141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813 (or 2777 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 245048141 is about 15654.0135747993. The cubic root of 245048141 is about 625.7734560836.

Adding to 245048141 its reverse (141840542), we get a palindrome (386888683).

The spelling of 245048141 in words is "two hundred forty-five million, forty-eight thousand, one hundred forty-one".

Divisors: 1 13 23 169 299 529 2741 3887 6877 35633 63043 89401 463229 819559 1449989 10654267 18849857 245048141