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228672248 = 23712913163
BaseRepresentation
bin11011010000101…
…00001011111000
3120221021202100112
431220110023320
5432020002443
634405123452
75444452640
oct1550241370
9527252315
10228672248
11108096932
12646b9588
13384b5b2c
1422527520
151511eb18
hexda142f8

228672248 has 32 divisors (see below), whose sum is σ = 490546560. Its totient is φ = 97895520.

The previous prime is 228672229. The next prime is 228672251. The reversal of 228672248 is 842276822.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 70715 + ... + 73877.

It is an arithmetic number, because the mean of its divisors is an integer number (15329580).

Almost surely, 2228672248 is an apocalyptic number.

228672248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

228672248 is an abundant number, since it is smaller than the sum of its proper divisors (261874312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228672248 is a wasteful number, since it uses less digits than its factorization.

228672248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467 (or 4463 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 228672248 is about 15121.9128419655. The cubic root of 228672248 is about 611.5113005237.

The spelling of 228672248 in words is "two hundred twenty-eight million, six hundred seventy-two thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 1291 2582 3163 5164 6326 9037 10328 12652 18074 22141 25304 36148 44282 72296 88564 177128 4083433 8166866 16333732 28584031 32667464 57168062 114336124 228672248