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228143824 = 2441934031
BaseRepresentation
bin11011001100100…
…11001011010000
3120220021220111021
431212103023100
5431401100244
634345525224
75440122226
oct1546231320
9526256437
10228143824
11107865917
12644a3814
133835c45c
142242ab16
1515068284
hexd9932d0

228143824 has 20 divisors (see below), whose sum is σ = 443096640. Its totient is φ = 113796320.

The previous prime is 228143819. The next prime is 228143827. The reversal of 228143824 is 428341822.

It is a self number, because there is not a number n which added to its sum of digits gives 228143824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228143827) 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 3 ways as a sum of consecutive naturals, for example, 10312 + ... + 23719.

It is an arithmetic number, because the mean of its divisors is an integer number (22154832).

Almost surely, 2228143824 is an apocalyptic number.

It is an amenable number.

228143824 is a deficient number, since it is larger than the sum of its proper divisors (214952816).

228143824 is a wasteful number, since it uses less digits than its factorization.

228143824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34458 (or 34452 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 228143824 is about 15104.4306082686. The cubic root of 228143824 is about 611.0399031765.

The spelling of 228143824 in words is "two hundred twenty-eight million, one hundred forty-three thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 16 419 838 1676 3352 6704 34031 68062 136124 272248 544496 14258989 28517978 57035956 114071912 228143824