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47520788 = 2272242453
BaseRepresentation
bin1011010101000…
…1110000010100
310022102022021012
42311101300110
544131131123
64414311352
71114630400
oct265216024
9108368235
1047520788
1124908087
1213ab8558
139acab13
146450100
15428a378
hex2d51c14

47520788 has 18 divisors (see below), whose sum is σ = 96739146. Its totient is φ = 20365968.

The previous prime is 47520773. The next prime is 47520793. The reversal of 47520788 is 88702574.

It can be written as a sum of positive squares in only one way, i.e., 38291344 + 9229444 = 6188^2 + 3038^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 121031 + ... + 121422.

It is an arithmetic number, because the mean of its divisors is an integer number (5374397).

Almost surely, 247520788 is an apocalyptic number.

It is an amenable number.

47520788 is an abundant number, since it is smaller than the sum of its proper divisors (49218358).

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

47520788 is a wasteful number, since it uses less digits than its factorization.

47520788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242471 (or 242462 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 47520788 is about 6893.5323311057. The cubic root of 47520788 is about 362.2106463041.

The spelling of 47520788 in words is "forty-seven million, five hundred twenty thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 242453 484906 969812 1697171 3394342 6788684 11880197 23760394 47520788