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228144248 = 231910331453
BaseRepresentation
bin11011001100100…
…11010001111000
3120220021221001222
431212103101320
5431401103443
634345531212
75440123403
oct1546232170
9526257058
10228144248
11107866172
12644a3b08
133835c6c7
142242ad3a
1515068468
hexd993478

228144248 has 32 divisors (see below), whose sum is σ = 451030800. Its totient is φ = 107889408.

The previous prime is 228144173. The next prime is 228144281. The reversal of 228144248 is 842441822.

228144248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156290 + ... + 157742.

Almost surely, 2228144248 is an apocalyptic number.

It is an amenable number.

228144248 is a deficient number, since it is larger than the sum of its proper divisors (222886552).

228144248 is a wasteful number, since it uses less digits than its factorization.

228144248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511 (or 2507 counting only the distinct ones).

The product of its digits is 32768, while the sum is 35.

The square root of 228144248 is about 15104.4446438788. Note that the first 3 decimals coincide. The cubic root of 228144248 is about 611.0402817108.

The spelling of 228144248 in words is "two hundred twenty-eight million, one hundred forty-four thousand, two hundred forty-eight".

Divisors: 1 2 4 8 19 38 76 152 1033 1453 2066 2906 4132 5812 8264 11624 19627 27607 39254 55214 78508 110428 157016 220856 1500949 3001898 6003796 12007592 28518031 57036062 114072124 228144248