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2130055 = 5426011
BaseRepresentation
bin1000001000000010000111
311000012212221
420020002013
51021130210
6113353211
724051034
oct10100207
94005787
102130055
111225384
12868807
135976b5
143d638b
152c11da
hex208087

2130055 has 4 divisors (see below), whose sum is σ = 2556072. Its totient is φ = 1704040.

The previous prime is 2130047. The next prime is 2130061. The reversal of 2130055 is 5500312.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2130055 - 23 = 2130047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213001 + ... + 213010.

It is an arithmetic number, because the mean of its divisors is an integer number (639018).

22130055 is an apocalyptic number.

2130055 is a deficient number, since it is larger than the sum of its proper divisors (426017).

2130055 is an equidigital number, since it uses as much as digits as its factorization.

2130055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426016.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 2130055 is about 1459.4707945005. The cubic root of 2130055 is about 128.6659425566.

Adding to 2130055 its reverse (5500312), we get a palindrome (7630367).

The spelling of 2130055 in words is "two million, one hundred thirty thousand, fifty-five".

Divisors: 1 5 426011 2130055