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50147838 = 23213415227
BaseRepresentation
bin1011111101001…
…1000111111110
310111100202220100
42333103013332
5100314212323
64550501530
71146151416
oct277230776
9114322810
1050147838
11263418a4
12149648a6
13a50a7a0
146935646
154608943
hex2fd31fe

50147838 has 48 divisors (see below), whose sum is σ = 119888496. Its totient is φ = 15050880.

The previous prime is 50147837. The next prime is 50147893. The reversal of 50147838 is 83874105.

50147838 is nontrivially palindromic in base 4.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50147831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6981 + ... + 12207.

It is an arithmetic number, because the mean of its divisors is an integer number (2497677).

Almost surely, 250147838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50147838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59944248).

50147838 is an abundant number, since it is smaller than the sum of its proper divisors (69740658).

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

50147838 is a wasteful number, since it uses less digits than its factorization.

50147838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 50147838 is about 7081.5138212108. The cubic root of 50147838 is about 368.7658858233.

The spelling of 50147838 in words is "fifty million, one hundred forty-seven thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 13 18 26 39 41 78 82 117 123 234 246 369 533 738 1066 1599 3198 4797 5227 9594 10454 15681 31362 47043 67951 94086 135902 203853 214307 407706 428614 611559 642921 1223118 1285842 1928763 2785991 3857526 5571982 8357973 16715946 25073919 50147838