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55938211 = 7172771697
BaseRepresentation
bin1101010101100…
…0110010100011
310220020221210121
43111120302203
5103310010321
65314541111
71246316110
oct325306243
9126227717
1055938211
112963722a
1216897797
13b787244
147601907
154d9e441
hex3558ca3

55938211 has 16 divisors (see below), whose sum is σ = 67974336. Its totient is φ = 44937216.

The previous prime is 55938203. The next prime is 55938217. The reversal of 55938211 is 11283955.

55938211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55938211 - 23 = 55938203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55938217) 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 15 ways as a sum of consecutive naturals, for example, 32115 + ... + 33811.

It is an arithmetic number, because the mean of its divisors is an integer number (4248396).

Almost surely, 255938211 is an apocalyptic number.

55938211 is a deficient number, since it is larger than the sum of its proper divisors (12036125).

55938211 is a wasteful number, since it uses less digits than its factorization.

55938211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998.

The product of its digits is 10800, while the sum is 34.

The square root of 55938211 is about 7479.1851828926. The cubic root of 55938211 is about 382.4454727404.

The spelling of 55938211 in words is "fifty-five million, nine hundred thirty-eight thousand, two hundred eleven".

Divisors: 1 7 17 119 277 1697 1939 4709 11879 28849 32963 201943 470069 3290483 7991173 55938211