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205253025 = 3522736707
BaseRepresentation
bin11000011101111…
…10100110100001
3112022012221012220
430032332212201
5410021044100
632211141253
75041423215
oct1416764641
9468187186
10205253025
11a59506aa
12588a4829
13336a62c3
141d38c945
1513045aa0
hexc3be9a1

205253025 has 12 divisors (see below), whose sum is σ = 339351792. Its totient is φ = 109468240.

The previous prime is 205252987. The next prime is 205253051. The reversal of 205253025 is 520352502.

It is not a de Polignac number, because 205253025 - 29 = 205252513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205252986 and 205253004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368279 + ... + 1368428.

It is an arithmetic number, because the mean of its divisors is an integer number (28279316).

Almost surely, 2205253025 is an apocalyptic number.

205253025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

205253025 is a deficient number, since it is larger than the sum of its proper divisors (134098767).

205253025 is a wasteful number, since it uses less digits than its factorization.

205253025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736720 (or 2736715 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 205253025 is about 14326.6543547333. The cubic root of 205253025 is about 589.8793442827.

The spelling of 205253025 in words is "two hundred five million, two hundred fifty-three thousand, twenty-five".

Divisors: 1 3 5 15 25 75 2736707 8210121 13683535 41050605 68417675 205253025