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538840050 = 235271015081
BaseRepresentation
bin100000000111100…
…000101111110010
31101112220220120220
4200013200233302
52100420340200
6125245113510
716232031150
oct4007405762
91345826526
10538840050
11257185561
12130558896
1387833988
14517c63d0
153248b4a0
hex201e0bf2

538840050 has 96 divisors (see below), whose sum is σ = 1542651264. Its totient is φ = 121920000.

The previous prime is 538840037. The next prime is 538840051. The reversal of 538840050 is 50048835.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 538839993 and 538840020.

It is not an unprimeable number, because it can be changed into a prime (538840051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103510 + ... + 108590.

It is an arithmetic number, because the mean of its divisors is an integer number (16069284).

Almost surely, 2538840050 is an apocalyptic number.

538840050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 538840050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771325632).

538840050 is an abundant number, since it is smaller than the sum of its proper divisors (1003811214).

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

538840050 is a wasteful number, since it uses less digits than its factorization.

538840050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5204 (or 5199 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 538840050 is about 23212.9285097766. The cubic root of 538840050 is about 813.7417950051.

Adding to 538840050 its reverse (50048835), we get a palindrome (588888885).

The spelling of 538840050 in words is "five hundred thirty-eight million, eight hundred forty thousand, fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 101 105 150 175 202 210 303 350 505 525 606 707 1010 1050 1414 1515 2121 2525 3030 3535 4242 5050 5081 7070 7575 10162 10605 15150 15243 17675 21210 25405 30486 35350 35567 50810 53025 71134 76215 106050 106701 127025 152430 177835 213402 254050 355670 381075 513181 533505 762150 889175 1026362 1067010 1539543 1778350 2565905 2667525 3079086 3592267 5131810 5335050 7184534 7697715 10776801 12829525 15395430 17961335 21553602 25659050 35922670 38488575 53884005 76977150 89806675 107768010 179613350 269420025 538840050