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275117085 = 32547130079
BaseRepresentation
bin10000011001011…
…111010000011101
3201011200101200200
4100121133100131
51030412221320
643144414113
76550312425
oct2031372035
9634611620
10275117085
111313295a1
1278177339
1344cc7c99
1428777485
1519246290
hex1065f41d

275117085 has 24 divisors (see below), whose sum is σ = 487019520. Its totient is φ = 143606112.

The previous prime is 275117083. The next prime is 275117111. The reversal of 275117085 is 580711572.

It is not a de Polignac number, because 275117085 - 21 = 275117083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275117083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62925 + ... + 67154.

It is an arithmetic number, because the mean of its divisors is an integer number (20292480).

Almost surely, 2275117085 is an apocalyptic number.

It is an amenable number.

275117085 is a deficient number, since it is larger than the sum of its proper divisors (211902435).

275117085 is a wasteful number, since it uses less digits than its factorization.

275117085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130137 (or 130134 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 36.

The square root of 275117085 is about 16586.6538216724. The cubic root of 275117085 is about 650.3880010881.

It can be divided in two parts, 27511 and 7085, that added together give a square (34596 = 1862).

The spelling of 275117085 in words is "two hundred seventy-five million, one hundred seventeen thousand, eighty-five".

Divisors: 1 3 5 9 15 45 47 141 235 423 705 2115 130079 390237 650395 1170711 1951185 5853555 6113713 18341139 30568565 55023417 91705695 275117085