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42798828 = 22315722717
BaseRepresentation
bin1010001101000…
…0111011101100
32222112101221210
42203100323230
541424030303
64125154420
71026532632
oct243207354
988471853
1042798828
1122182436
12123bba10
138b36767
145981352
153b56203
hex28d0eec

42798828 has 24 divisors (see below), whose sum is σ = 100504432. Its totient is φ = 14174784.

The previous prime is 42798827. The next prime is 42798857. The reversal of 42798828 is 82889724.

42798828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42798827) 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, 9475 + ... + 13242.

Almost surely, 242798828 is an apocalyptic number.

It is an amenable number.

42798828 is an abundant number, since it is smaller than the sum of its proper divisors (57705604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42798828 is a wasteful number, since it uses less digits than its factorization.

42798828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22881 (or 22879 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 42798828 is about 6542.0813201916. The cubic root of 42798828 is about 349.7926063842.

The spelling of 42798828 in words is "forty-two million, seven hundred ninety-eight thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 157 314 471 628 942 1884 22717 45434 68151 90868 136302 272604 3566569 7133138 10699707 14266276 21399414 42798828