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55206071 = 314014441
BaseRepresentation
bin1101001010011…
…0000010110111
310211212202111022
43102212002313
5103113043241
65251131355
71240146434
oct322460267
9124782438
1055206071
1129187158
12165a3b5b
13b58bc1b
147490b8b
154ca754b
hex34a60b7

55206071 has 8 divisors (see below), whose sum is σ = 57141888. Its totient is φ = 53280000.

The previous prime is 55206013. The next prime is 55206079. The reversal of 55206071 is 17060255.

55206071 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 a cyclic number.

It is not a de Polignac number, because 55206071 - 26 = 55206007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55206071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55206079) 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, 10211 + ... + 14651.

It is an arithmetic number, because the mean of its divisors is an integer number (7142736).

Almost surely, 255206071 is an apocalyptic number.

55206071 is a deficient number, since it is larger than the sum of its proper divisors (1935817).

55206071 is a wasteful number, since it uses less digits than its factorization.

55206071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 55206071 is about 7430.0788017356. The cubic root of 55206071 is about 380.7696106223.

The spelling of 55206071 in words is "fifty-five million, two hundred six thousand, seventy-one".

Divisors: 1 31 401 4441 12431 137671 1780841 55206071