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228632248 = 23135341479
BaseRepresentation
bin11011010000010…
…10011010111000
3120221012201111001
431220022122320
5432012212443
634404214344
75444225215
oct1550123270
9527181431
10228632248
11108069879
126469a3b4
13384a0870
1422516b0c
1515112d4d
hexda0a6b8

228632248 has 32 divisors (see below), whose sum is σ = 470383200. Its totient is φ = 103529088.

The previous prime is 228632237. The next prime is 228632249. The reversal of 228632248 is 842236822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228632249) by changing a digit.

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, 15228 + ... + 26251.

It is an arithmetic number, because the mean of its divisors is an integer number (14699475).

Almost surely, 2228632248 is an apocalyptic number.

It is an amenable number.

228632248 is an abundant number, since it is smaller than the sum of its proper divisors (241750952).

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

228632248 is a wasteful number, since it uses less digits than its factorization.

228632248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41551 (or 41547 counting only the distinct ones).

The product of its digits is 73728, while the sum is 37.

The square root of 228632248 is about 15120.5902001212. The cubic root of 228632248 is about 611.4756426792.

The spelling of 228632248 in words is "two hundred twenty-eight million, six hundred thirty-two thousand, two hundred forty-eight".

Divisors: 1 2 4 8 13 26 52 53 104 106 212 424 689 1378 2756 5512 41479 82958 165916 331832 539227 1078454 2156908 2198387 4313816 4396774 8793548 17587096 28579031 57158062 114316124 228632248