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2127031 = 19111949
BaseRepresentation
bin1000000111010010110111
311000001201221
420013102313
51021031111
6113331211
724036154
oct10072267
94001657
102127031
111223085
12866b07
135961ca
143d522b
152c0371
hex2074b7

2127031 has 4 divisors (see below), whose sum is σ = 2239000. Its totient is φ = 2015064.

The previous prime is 2127029. The next prime is 2127043. The reversal of 2127031 is 1307212.

It is a happy number.

2127031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2127031 - 21 = 2127029 is a prime.

It is a super-2 number, since 2×21270312 = 9048521749922, which contains 22 as substring.

It is a Duffinian number.

2127031 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2126996 and 2127014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127061) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55956 + ... + 55993.

It is an arithmetic number, because the mean of its divisors is an integer number (559750).

22127031 is an apocalyptic number.

2127031 is a deficient number, since it is larger than the sum of its proper divisors (111969).

2127031 is a wasteful number, since it uses less digits than its factorization.

2127031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111968.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2127031 is about 1458.4344345907. The cubic root of 2127031 is about 128.6050254940.

The spelling of 2127031 in words is "two million, one hundred twenty-seven thousand, thirty-one".

Divisors: 1 19 111949 2127031