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228144417 = 3163466553
BaseRepresentation
bin11011001100100…
…11010100100001
3120220021221022020
431212103110201
5431401110132
634345532053
75440124034
oct1546232441
9526257266
10228144417
11107866306
12644a4029
133835c7c7
142242b01b
151506852c
hexd993521

228144417 has 8 divisors (see below), whose sum is σ = 306059424. Its totient is φ = 151162848.

The previous prime is 228144409. The next prime is 228144443. The reversal of 228144417 is 714441822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228144417 - 23 = 228144409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228144017) 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, 232788 + ... + 233765.

It is an arithmetic number, because the mean of its divisors is an integer number (38257428).

Almost surely, 2228144417 is an apocalyptic number.

It is an amenable number.

228144417 is a deficient number, since it is larger than the sum of its proper divisors (77915007).

228144417 is a wasteful number, since it uses less digits than its factorization.

228144417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466719.

The product of its digits is 14336, while the sum is 33.

The square root of 228144417 is about 15104.4502382576. The cubic root of 228144417 is about 611.0404325887.

The spelling of 228144417 in words is "two hundred twenty-eight million, one hundred forty-four thousand, four hundred seventeen".

Divisors: 1 3 163 489 466553 1399659 76048139 228144417