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228670508 = 2211233137197
BaseRepresentation
bin11011010000100…
…11110000101100
3120221021122222002
431220103300230
5432014424013
634405111432
75444444603
oct1550236054
9527248862
10228670508
111080955a0
12646b8578
13384b50c1
1422526a3a
151511e358
hexda13c2c

228670508 has 96 divisors (see below), whose sum is σ = 485388288. Its totient is φ = 93139200.

The previous prime is 228670501. The next prime is 228670511. The reversal of 228670508 is 805076822.

It is not an unprimeable number, because it can be changed into a prime (228670501) 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 31 ways as a sum of consecutive naturals, for example, 1160666 + ... + 1160862.

It is an arithmetic number, because the mean of its divisors is an integer number (5056128).

Almost surely, 2228670508 is an apocalyptic number.

It is an amenable number.

228670508 is an abundant number, since it is smaller than the sum of its proper divisors (256717780).

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

228670508 is a wasteful number, since it uses less digits than its factorization.

228670508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 228670508 is about 15121.8553094519. The cubic root of 228670508 is about 611.5097494939.

The spelling of 228670508 in words is "two hundred twenty-eight million, six hundred seventy thousand, five hundred eight".

Divisors: 1 2 4 11 22 23 31 37 44 46 62 74 92 124 148 197 253 341 394 407 506 682 713 788 814 851 1012 1147 1364 1426 1628 1702 2167 2294 2852 3404 4334 4531 4588 6107 7289 7843 8668 9062 9361 12214 12617 14578 15686 18124 18722 24428 25234 26381 29156 31372 37444 49841 50468 52762 67177 80179 99682 105524 134354 140461 160358 167647 199364 225959 268708 280922 290191 320716 335294 451918 561844 580382 670588 903836 1160764 1545071 1844117 2485549 3090142 3688234 4971098 5197057 6180284 7376468 9942196 10394114 20788228 57167627 114335254 228670508