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228324117 = 37103283373
BaseRepresentation
bin11011001101111…
…11001100010101
3120220122001210210
431212333030111
5431422332432
634353440033
75441502660
oct1546771425
9526561723
10228324117
1110797931a
1264570019
13383c3538
14224766d7
15150a18cc
hexd9bf315

228324117 has 32 divisors (see below), whose sum is σ = 353486848. Its totient is φ = 128402496.

The previous prime is 228324113. The next prime is 228324137. The reversal of 228324117 is 711423822.

It is not a de Polignac number, because 228324117 - 22 = 228324113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228324113) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 611943 + ... + 612315.

It is an arithmetic number, because the mean of its divisors is an integer number (11046464).

Almost surely, 2228324117 is an apocalyptic number.

It is an amenable number.

228324117 is a deficient number, since it is larger than the sum of its proper divisors (125162731).

228324117 is a wasteful number, since it uses less digits than its factorization.

228324117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its digits is 5376, while the sum is 30.

The square root of 228324117 is about 15110.3976453302. The cubic root of 228324117 is about 611.2008209813.

Adding to 228324117 its reverse (711423822), we get a palindrome (939747939).

The spelling of 228324117 in words is "two hundred twenty-eight million, three hundred twenty-four thousand, one hundred seventeen".

Divisors: 1 3 7 21 103 283 309 373 721 849 1119 1981 2163 2611 5943 7833 29149 38419 87447 105559 115257 204043 268933 316677 612129 738913 806799 2216739 10872577 32617731 76108039 228324117