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228303275 = 529132131
BaseRepresentation
bin11011001101110…
…10000110101011
3120220121000012212
431212322012223
5431421201100
634353155335
75441355134
oct1546720653
9526530185
10228303275
111079646a2
126455bb4b
13383b6bc5
142246cc8b
151509a635
hexd9ba1ab

228303275 has 6 divisors (see below), whose sum is σ = 283096092. Its totient is φ = 182642600.

The previous prime is 228303241. The next prime is 228303281. The reversal of 228303275 is 572303822.

It is not a de Polignac number, because 228303275 - 210 = 228302251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4566041 + ... + 4566090.

It is an arithmetic number, because the mean of its divisors is an integer number (47182682).

Almost surely, 2228303275 is an apocalyptic number.

228303275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228303275 is a deficient number, since it is larger than the sum of its proper divisors (54792817).

228303275 is an equidigital number, since it uses as much as digits as its factorization.

228303275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9132141 (or 9132136 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 228303275 is about 15109.7079720291. The cubic root of 228303275 is about 611.1822230991.

The spelling of 228303275 in words is "two hundred twenty-eight million, three hundred three thousand, two hundred seventy-five".

Divisors: 1 5 25 9132131 45660655 228303275