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228146075 = 5271791627
BaseRepresentation
bin11011001100100…
…11101110011011
3120220022000120122
431212103232123
5431401133300
634345543455
75440131623
oct1546235633
9526260518
10228146075
11107867583
12644a4b8b
13383604a1
142242b883
1515068c85
hexd993b9b

228146075 has 24 divisors (see below), whose sum is σ = 290695680. Its totient is φ = 177559200.

The previous prime is 228146057. The next prime is 228146101. The reversal of 228146075 is 570641822.

It is not a de Polignac number, because 228146075 - 26 = 228146011 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 139412 + ... + 141038.

It is an arithmetic number, because the mean of its divisors is an integer number (12112320).

Almost surely, 2228146075 is an apocalyptic number.

228146075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228146075 is a deficient number, since it is larger than the sum of its proper divisors (62549605).

228146075 is a wasteful number, since it uses less digits than its factorization.

228146075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 228146075 is about 15104.5051226447. The cubic root of 228146075 is about 611.0419127953.

Adding to 228146075 its reverse (570641822), we get a palindrome (798787897).

The spelling of 228146075 in words is "two hundred twenty-eight million, one hundred forty-six thousand, seventy-five".

Divisors: 1 5 25 71 79 355 395 1627 1775 1975 5609 8135 28045 40675 115517 128533 140225 577585 642665 2887925 3213325 9125843 45629215 228146075