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228395044 = 22238123981
BaseRepresentation
bin11011001110100…
…00100000100100
3120220202200002201
431213100200210
5431432120134
634355144244
75442216523
oct1547204044
9526680081
10228395044
11107a17639
12645a5084
13384198c7
14224944ba
15150b7914
hexd9d0824

228395044 has 12 divisors (see below), whose sum is σ = 399875868. Its totient is φ = 114144800.

The previous prime is 228395021. The next prime is 228395081. The reversal of 228395044 is 440593822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 82944 + 228312100 = 288^2 + 15110^2 .

It is a super-2 number, since 2×2283950442 = 104328592247523872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228394994 and 228395012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467 + ... + 21514.

It is an arithmetic number, because the mean of its divisors is an integer number (33322989).

Almost surely, 2228395044 is an apocalyptic number.

It is an amenable number.

228395044 is a deficient number, since it is larger than the sum of its proper divisors (171480824).

228395044 is a wasteful number, since it uses less digits than its factorization.

228395044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26366 (or 26364 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 228395044 is about 15112.7444231681. The cubic root of 228395044 is about 611.2641025904.

The spelling of 228395044 in words is "two hundred twenty-eight million, three hundred ninety-five thousand, forty-four".

Divisors: 1 2 4 2381 4762 9524 23981 47962 95924 57098761 114197522 228395044