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250005275 = 5213769247
BaseRepresentation
bin11101110011011…
…00011100011011
3122102102120202122
432321230130123
51003000132100
640450251455
76124003232
oct1671543433
9572376678
10250005275
11119137733
126b886b8b
133ca44c20
14252bbb19
1516e35985
hexee6c71b

250005275 has 12 divisors (see below), whose sum is σ = 333853632. Its totient is φ = 184619040.

The previous prime is 250005269. The next prime is 250005289. The reversal of 250005275 is 572500052.

It is not a de Polignac number, because 250005275 - 220 = 248956699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384299 + ... + 384948.

It is an arithmetic number, because the mean of its divisors is an integer number (27821136).

Almost surely, 2250005275 is an apocalyptic number.

250005275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

250005275 is a deficient number, since it is larger than the sum of its proper divisors (83848357).

250005275 is a wasteful number, since it uses less digits than its factorization.

250005275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769270 (or 769265 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 250005275 is about 15811.5551101086. Note that the first 3 decimals coincide. The cubic root of 250005275 is about 629.9649556386.

The spelling of 250005275 in words is "two hundred fifty million, five thousand, two hundred seventy-five".

Divisors: 1 5 13 25 65 325 769247 3846235 10000211 19231175 50001055 250005275