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55107803 = 1812511213
BaseRepresentation
bin1101001000111…
…0000011011011
310211200202200202
43102032003123
5103101422203
65245052415
71236260102
oct322160333
9124622622
1055107803
112911a343
121655710b
13b55628a
147467039
154c88388
hex348e0db

55107803 has 8 divisors (see below), whose sum is σ = 55678896. Its totient is φ = 54540000.

The previous prime is 55107769. The next prime is 55107817. The reversal of 55107803 is 30870155.

55107803 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 55107803 - 212 = 55103707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55107823) 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, 44825 + ... + 46037.

It is an arithmetic number, because the mean of its divisors is an integer number (6959862).

Almost surely, 255107803 is an apocalyptic number.

55107803 is a deficient number, since it is larger than the sum of its proper divisors (571093).

55107803 is a wasteful number, since it uses less digits than its factorization.

55107803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 55107803 is about 7423.4630059023. The cubic root of 55107803 is about 380.5435503920.

Adding to 55107803 its reverse (30870155), we get a palindrome (85977958).

The spelling of 55107803 in words is "fifty-five million, one hundred seven thousand, eight hundred three".

Divisors: 1 181 251 1213 45431 219553 304463 55107803