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253166125 = 53171091093
BaseRepresentation
bin11110001011100…
…00001000101101
3122122101011122011
433011300020231
51004302304000
641042121221
76162606442
oct1705601055
9578334564
10253166125
1111a9a6503
1270950211
13405b0854
14258a19c9
151735c2ba
hexf17022d

253166125 has 32 divisors (see below), whose sum is σ = 337914720. Its totient is φ = 188697600.

The previous prime is 253166113. The next prime is 253166131. The reversal of 253166125 is 521661352.

It can be written as a sum of positive squares in 16 ways, for example, as 41550916 + 211615209 = 6446^2 + 14547^2 .

It is not a de Polignac number, because 253166125 - 25 = 253166093 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 231079 + ... + 232171.

It is an arithmetic number, because the mean of its divisors is an integer number (10559835).

Almost surely, 2253166125 is an apocalyptic number.

253166125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

253166125 is a deficient number, since it is larger than the sum of its proper divisors (84748595).

253166125 is a wasteful number, since it uses less digits than its factorization.

253166125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1224 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 253166125 is about 15911.1949582676. The cubic root of 253166125 is about 632.6087550653.

The spelling of 253166125 in words is "two hundred fifty-three million, one hundred sixty-six thousand, one hundred twenty-five".

Divisors: 1 5 17 25 85 109 125 425 545 1093 1853 2125 2725 5465 9265 13625 18581 27325 46325 92905 119137 136625 231625 464525 595685 2025329 2322625 2978425 10126645 14892125 50633225 253166125