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108744428 = 22132091239
BaseRepresentation
bin1100111101101…
…00111011101100
321120121210022102
412132310323230
5210314310203
614442434232
72460212102
oct636647354
9246553272
10108744428
1156424331
1230502978
13196b5a20
1410629c72
159830888
hex67b4eec

108744428 has 12 divisors (see below), whose sum is σ = 204941520. Its totient is φ = 50189712.

The previous prime is 108744409. The next prime is 108744431. The reversal of 108744428 is 824447801.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 108744391 and 108744400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045568 + ... + 1045671.

It is an arithmetic number, because the mean of its divisors is an integer number (17078460).

Almost surely, 2108744428 is an apocalyptic number.

It is an amenable number.

108744428 is a deficient number, since it is larger than the sum of its proper divisors (96197092).

108744428 is a wasteful number, since it uses less digits than its factorization.

108744428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091256 (or 2091254 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 108744428 is about 10428.0596469334. The cubic root of 108744428 is about 477.3119832129.

The spelling of 108744428 in words is "one hundred eight million, seven hundred forty-four thousand, four hundred twenty-eight".

Divisors: 1 2 4 13 26 52 2091239 4182478 8364956 27186107 54372214 108744428