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47885814 = 23219163859
BaseRepresentation
bin1011011010101…
…0110111110110
310100002211222200
42312222313312
544224321224
64430205330
71121010534
oct266526766
9110084880
1047885814
1125037359
1214053846
139bc8002
146507154
15430d5c9
hex2daadf6

47885814 has 48 divisors (see below), whose sum is σ = 110011200. Its totient is φ = 15011568.

The previous prime is 47885791. The next prime is 47885819. The reversal of 47885814 is 41858874.

It is a self number, because there is not a number n which added to its sum of digits gives 47885814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47885819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55317 + ... + 56175.

It is an arithmetic number, because the mean of its divisors is an integer number (2291900).

Almost surely, 247885814 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47885814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55005600).

47885814 is an abundant number, since it is smaller than the sum of its proper divisors (62125386).

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

47885814 is a wasteful number, since it uses less digits than its factorization.

47885814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 47885814 is about 6919.9576588300. The cubic root of 47885814 is about 363.1357095657.

The spelling of 47885814 in words is "forty-seven million, eight hundred eighty-five thousand, eight hundred fourteen".

Divisors: 1 2 3 6 9 18 19 38 57 114 163 171 326 342 489 859 978 1467 1718 2577 2934 3097 5154 6194 7731 9291 15462 16321 18582 27873 32642 48963 55746 97926 140017 146889 280034 293778 420051 840102 1260153 2520306 2660323 5320646 7980969 15961938 23942907 47885814