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47988794 = 2719296221
BaseRepresentation
bin1011011100010…
…0000000111010
310100022002020202
42313010000322
544241120134
64432322202
71121620010
oct267040072
9110262222
1047988794
11250a7767
12140a3362
139c32b49
1465328b0
15432dd7e
hex2dc403a

47988794 has 32 divisors (see below), whose sum is σ = 89596800. Its totient is φ = 18809280.

The previous prime is 47988791. The next prime is 47988803. The reversal of 47988794 is 49788974.

It is not an unprimeable number, because it can be changed into a prime (47988791) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4604 + ... + 10824.

It is an arithmetic number, because the mean of its divisors is an integer number (2799900).

Almost surely, 247988794 is an apocalyptic number.

47988794 is a deficient number, since it is larger than the sum of its proper divisors (41608006).

47988794 is a wasteful number, since it uses less digits than its factorization.

47988794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6278.

The product of its digits is 4064256, while the sum is 56.

The square root of 47988794 is about 6927.3944596796. The cubic root of 47988794 is about 363.3958349023.

The spelling of 47988794 in words is "forty-seven million, nine hundred eighty-eight thousand, seven hundred ninety-four".

Divisors: 1 2 7 14 19 29 38 58 133 203 266 406 551 1102 3857 6221 7714 12442 43547 87094 118199 180409 236398 360818 827393 1262863 1654786 2525726 3427771 6855542 23994397 47988794