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2150055 = 32547779
BaseRepresentation
bin1000001100111010100111
311001020022200
420030322213
51022300210
6114025543
724163245
oct10147247
94036280
102150055
111239406
128782b3
135a382b
143dd795
152c70c0
hex20cea7

2150055 has 12 divisors (see below), whose sum is σ = 3726840. Its totient is φ = 1146672.

The previous prime is 2150039. The next prime is 2150101. The reversal of 2150055 is 5500512.

2150055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2150055 - 24 = 2150039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23845 + ... + 23934.

It is an arithmetic number, because the mean of its divisors is an integer number (310570).

22150055 is an apocalyptic number.

2150055 is a deficient number, since it is larger than the sum of its proper divisors (1576785).

2150055 is a wasteful number, since it uses less digits than its factorization.

2150055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47790 (or 47787 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 2150055 is about 1466.3065845859. The cubic root of 2150055 is about 129.0673886233.

Adding to 2150055 its reverse (5500512), we get a palindrome (7650567).

The spelling of 2150055 in words is "two million, one hundred fifty thousand, fifty-five".

Divisors: 1 3 5 9 15 45 47779 143337 238895 430011 716685 2150055