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253278275 = 5210131131
BaseRepresentation
bin11110001100010…
…11100001000011
3122122120212110212
433012023201003
51004314401100
641044344335
76163554425
oct1706134103
9578525425
10253278275
1111aa72798
12709a50ab
134061c903
14258d0815
1517380635
hexf18b843

253278275 has 6 divisors (see below), whose sum is σ = 314065092. Its totient is φ = 202622600.

The previous prime is 253278269. The next prime is 253278287. The reversal of 253278275 is 572872352.

It is not a de Polignac number, because 253278275 - 26 = 253278211 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 (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5065541 + ... + 5065590.

It is an arithmetic number, because the mean of its divisors is an integer number (52344182).

Almost surely, 2253278275 is an apocalyptic number.

253278275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253278275 is a deficient number, since it is larger than the sum of its proper divisors (60786817).

253278275 is a wasteful number, since it uses less digits than its factorization.

253278275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131141 (or 10131136 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 253278275 is about 15914.7188162405. The cubic root of 253278275 is about 632.7021543410.

The spelling of 253278275 in words is "two hundred fifty-three million, two hundred seventy-eight thousand, two hundred seventy-five".

Divisors: 1 5 25 10131131 50655655 253278275