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275000228 = 221720112
BaseRepresentation
bin10000011001000…
…010101110100100
3201011110110101122
4100121002232210
51030400001403
643142113112
76546314636
oct2031025644
9634413348
10275000228
11131259818
127811b798
1344c86a39
1428746a56
1519221838
hex10642ba4

275000228 has 18 divisors (see below), whose sum is σ = 509812758. Its totient is φ = 129347520.

The previous prime is 275000221. The next prime is 275000251. The reversal of 275000228 is 822000572.

It can be written as a sum of positive squares in only one way, i.e., 258823744 + 16176484 = 16088^2 + 4022^2 .

It is a junction number, because it is equal to n+sod(n) for n = 275000197 and 275000206.

It is not an unprimeable number, because it can be changed into a prime (275000221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135743 + ... + 137753.

It is an arithmetic number, because the mean of its divisors is an integer number (28322931).

Almost surely, 2275000228 is an apocalyptic number.

It is an amenable number.

275000228 is a deficient number, since it is larger than the sum of its proper divisors (234812530).

275000228 is an equidigital number, since it uses as much as digits as its factorization.

275000228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043 (or 2030 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 275000228 is about 16583.1308262342. The cubic root of 275000228 is about 650.2959031437.

The spelling of 275000228 in words is "two hundred seventy-five million, two hundred twenty-eight", and thus it is an aban number.

Divisors: 1 2 4 17 34 68 2011 4022 8044 34187 68374 136748 4044121 8088242 16176484 68750057 137500114 275000228