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47838349 = 134189753
BaseRepresentation
bin1011011001111…
…1010010001101
310100000102212201
42312133102031
544221311344
64425201501
71120422256
oct266372215
9110012781
1047838349
1125004729
1214030291
139bac520
1464d3b2d
1542ee4d4
hex2d9f48d

47838349 has 8 divisors (see below), whose sum is σ = 52775352. Its totient is φ = 43080960.

The previous prime is 47838337. The next prime is 47838353. The reversal of 47838349 is 94383874.

It can be written as a sum of positive squares in 4 ways, for example, as 324900 + 47513449 = 570^2 + 6893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47838349 - 217 = 47707277 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47838299 and 47838308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47838359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44344 + ... + 45409.

It is an arithmetic number, because the mean of its divisors is an integer number (6596919).

Almost surely, 247838349 is an apocalyptic number.

It is an amenable number.

47838349 is a deficient number, since it is larger than the sum of its proper divisors (4937003).

47838349 is a wasteful number, since it uses less digits than its factorization.

47838349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89807.

The product of its digits is 580608, while the sum is 46.

The square root of 47838349 is about 6916.5272355424. The cubic root of 47838349 is about 363.0156883940.

The spelling of 47838349 in words is "forty-seven million, eight hundred thirty-eight thousand, three hundred forty-nine".

Divisors: 1 13 41 533 89753 1166789 3679873 47838349