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50323221 = 3313311461
BaseRepresentation
bin1011111111110…
…1111100010101
310111200200111000
42333331330111
5100340320341
64554333513
71150511634
oct277757425
9114620430
1050323221
1126451643
1214a2a299
13a56c570
14697d51b
1546408b6
hex2ffdf15

50323221 has 32 divisors (see below), whose sum is σ = 80720640. Its totient is φ = 30801600.

The previous prime is 50323211. The next prime is 50323223. The reversal of 50323221 is 12232305.

It is not a de Polignac number, because 50323221 - 215 = 50290453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50323194 and 50323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50323223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108931 + ... + 109391.

It is an arithmetic number, because the mean of its divisors is an integer number (2522520).

Almost surely, 250323221 is an apocalyptic number.

It is an amenable number.

50323221 is a deficient number, since it is larger than the sum of its proper divisors (30397419).

50323221 is a wasteful number, since it uses less digits than its factorization.

50323221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 50323221 is about 7093.8861704992. The cubic root of 50323221 is about 369.1952829778.

Adding to 50323221 its reverse (12232305), we get a palindrome (62555526).

The spelling of 50323221 in words is "fifty million, three hundred twenty-three thousand, two hundred twenty-one".

Divisors: 1 3 9 13 27 39 117 311 351 461 933 1383 2799 4043 4149 5993 8397 12129 12447 17979 36387 53937 109161 143371 161811 430113 1290339 1863823 3871017 5591469 16774407 50323221