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55102011 = 3181101477
BaseRepresentation
bin1101001000110…
…0101000111011
310211200110202020
43102030220323
5103101231021
65245005523
71236234156
oct322145073
9124613666
1055102011
1129115a58
12165538a3
13b553753
147464c9d
154c867c6
hex348ca3b

55102011 has 8 divisors (see below), whose sum is σ = 73875984. Its totient is φ = 36531360.

The previous prime is 55102009. The next prime is 55102027. The reversal of 55102011 is 11020155.

55102011 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 55102011 - 21 = 55102009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55102031) 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, 50196 + ... + 51281.

It is an arithmetic number, because the mean of its divisors is an integer number (9234498).

Almost surely, 255102011 is an apocalyptic number.

55102011 is a deficient number, since it is larger than the sum of its proper divisors (18773973).

55102011 is a wasteful number, since it uses less digits than its factorization.

55102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101661.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 55102011 is about 7423.0728812265. The cubic root of 55102011 is about 380.5302178247.

Adding to 55102011 its reverse (11020155), we get a palindrome (66122166).

The spelling of 55102011 in words is "fifty-five million, one hundred two thousand, eleven".

Divisors: 1 3 181 543 101477 304431 18367337 55102011