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245205325 = 5255717609
BaseRepresentation
bin11101001110110…
…00100101001101
3122002101201110201
432213120211031
51000233032300
640155333501
76035132221
oct1647304515
9562351421
10245205325
11116459432
126a151291
133ba54211
14247cc781
15167d866a
hexe9d894d

245205325 has 12 divisors (see below), whose sum is σ = 304617780. Its totient is φ = 195800960.

The previous prime is 245205293. The next prime is 245205329. The reversal of 245205325 is 523502542.

It can be written as a sum of positive squares in 6 ways, for example, as 16016004 + 229189321 = 4002^2 + 15139^2 .

It is not a de Polignac number, because 245205325 - 25 = 245205293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245205293 and 245205302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245205329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5121 + ... + 22729.

It is an arithmetic number, because the mean of its divisors is an integer number (25384815).

Almost surely, 2245205325 is an apocalyptic number.

245205325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245205325 is a deficient number, since it is larger than the sum of its proper divisors (59412455).

245205325 is a wasteful number, since it uses less digits than its factorization.

245205325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18176 (or 18171 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 245205325 is about 15659.0333354266. The cubic root of 245205325 is about 625.9072264670.

Adding to 245205325 its reverse (523502542), we get a palindrome (768707867).

The spelling of 245205325 in words is "two hundred forty-five million, two hundred five thousand, three hundred twenty-five".

Divisors: 1 5 25 557 2785 13925 17609 88045 440225 9808213 49041065 245205325