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47420268 = 2237896343
BaseRepresentation
bin1011010011100…
…1001101101100
310022020012101020
42310321031230
544114422033
64412214140
71114031340
oct264711554
9108205336
1047420268
1124849605
1213a6a350
139a9413c
146425620
15426a6b3
hex2d3936c

47420268 has 48 divisors (see below), whose sum is σ = 127895040. Its totient is φ = 13394304.

The previous prime is 47420251. The next prime is 47420279. The reversal of 47420268 is 86202474.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 10647.

It is an arithmetic number, because the mean of its divisors is an integer number (2664480).

Almost surely, 247420268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47420268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63947520).

47420268 is an abundant number, since it is smaller than the sum of its proper divisors (80474772).

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

47420268 is a wasteful number, since it uses less digits than its factorization.

47420268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446 (or 6444 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 47420268 is about 6886.2375794043. The cubic root of 47420268 is about 361.9550731258.

The spelling of 47420268 in words is "forty-seven million, four hundred twenty thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 89 178 267 356 534 623 1068 1246 1869 2492 3738 6343 7476 12686 19029 25372 38058 44401 76116 88802 133203 177604 266406 532812 564527 1129054 1693581 2258108 3387162 3951689 6774324 7903378 11855067 15806756 23710134 47420268