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39820048 = 2419130987
BaseRepresentation
bin1001011111100…
…1101100010000
32202221001211121
42113321230100
540143220143
63541252024
7662315302
oct227715420
982831747
1039820048
1120528434
1211404014
138332978
145407972
1537687ed
hex25f9b10

39820048 has 20 divisors (see below), whose sum is σ = 81212560. Its totient is φ = 18861984.

The previous prime is 39820037. The next prime is 39820051. The reversal of 39820048 is 84002893.

39820048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39819995 and 39820022.

It is an unprimeable number.

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, 65190 + ... + 65797.

It is an arithmetic number, because the mean of its divisors is an integer number (4060628).

Almost surely, 239820048 is an apocalyptic number.

39820048 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

39820048 is an abundant number, since it is smaller than the sum of its proper divisors (41392512).

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

39820048 is a wasteful number, since it uses less digits than its factorization.

39820048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131014 (or 131008 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 39820048 is about 6310.3128290125. The cubic root of 39820048 is about 341.4815623426.

The spelling of 39820048 in words is "thirty-nine million, eight hundred twenty thousand, forty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 130987 261974 523948 1047896 2095792 2488753 4977506 9955012 19910024 39820048