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50707221 = 3144711681
BaseRepresentation
bin1100000101101…
…1101100010101
310112102012020020
43001123230111
5100440112341
65010455353
71154001315
oct301335425
9115365206
1050707221
11266940a4
1214b94559
13a675296
146a3d445
1546b9566
hex305bb15

50707221 has 8 divisors (see below), whose sum is σ = 67662144. Its totient is φ = 33778560.

The previous prime is 50707211. The next prime is 50707229. The reversal of 50707221 is 12270705.

50707221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 50707221 - 27 = 50707093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50707191 and 50707200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50707229) 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 7 ways as a sum of consecutive naturals, for example, 1500 + ... + 10181.

It is an arithmetic number, because the mean of its divisors is an integer number (8457768).

Almost surely, 250707221 is an apocalyptic number.

It is an amenable number.

50707221 is a deficient number, since it is larger than the sum of its proper divisors (16954923).

50707221 is a wasteful number, since it uses less digits than its factorization.

50707221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13131.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 50707221 is about 7120.9002942044. The cubic root of 50707221 is about 370.1319738610.

Adding to 50707221 its reverse (12270705), we get a palindrome (62977926).

The spelling of 50707221 in words is "fifty million, seven hundred seven thousand, two hundred twenty-one".

Divisors: 1 3 1447 4341 11681 35043 16902407 50707221