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224073385 = 5199722441
BaseRepresentation
bin11010101101100…
…01011010101001
3120121122002220021
431112301122221
5424330322020
634122400441
75360410114
oct1526613251
9517562807
10224073385
11105535718
1263060121
1337565803
1421a8b57b
1514a121aa
hexd5b16a9

224073385 has 8 divisors (see below), whose sum is σ = 269034696. Its totient is φ = 179160960.

The previous prime is 224073361. The next prime is 224073391. The reversal of 224073385 is 583370422.

It can be written as a sum of positive squares in 4 ways, for example, as 18896409 + 205176976 = 4347^2 + 14324^2 .

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

It is not a de Polignac number, because 224073385 - 225 = 190518953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224073385.

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, 1236 + ... + 21205.

It is an arithmetic number, because the mean of its divisors is an integer number (33629337).

Almost surely, 2224073385 is an apocalyptic number.

It is an amenable number.

224073385 is a deficient number, since it is larger than the sum of its proper divisors (44961311).

224073385 is a wasteful number, since it uses less digits than its factorization.

224073385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24443.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 224073385 is about 14969.0809671135. The cubic root of 224073385 is about 607.3841085868.

It can be divided in two parts, 2240 and 73385, that added together give a square (75625 = 2752).

The spelling of 224073385 in words is "two hundred twenty-four million, seventy-three thousand, three hundred eighty-five".

Divisors: 1 5 1997 9985 22441 112205 44814677 224073385