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2049231 = 317231747
BaseRepresentation
bin111110100010011001111
310212010000110
413310103033
51011033411
6111531103
723263302
oct7642317
93763013
102049231
11117a688
12829a93
13569982
143b4b39
152a72a6
hex1f44cf

2049231 has 16 divisors (see below), whose sum is σ = 3020544. Its totient is φ = 1229184.

The previous prime is 2049191. The next prime is 2049263. The reversal of 2049231 is 1329402.

It is not a de Polignac number, because 2049231 - 26 = 2049167 is a prime.

It is a super-2 number, since 2×20492312 = 8398695382722, which contains 22 as substring.

2049231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2049198 and 2049207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2049331) 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 15 ways as a sum of consecutive naturals, for example, 300 + ... + 2046.

It is an arithmetic number, because the mean of its divisors is an integer number (188784).

22049231 is an apocalyptic number.

2049231 is a deficient number, since it is larger than the sum of its proper divisors (971313).

2049231 is a wasteful number, since it uses less digits than its factorization.

2049231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2049231 is about 1431.5135346898. The cubic root of 2049231 is about 127.0175229505.

The spelling of 2049231 in words is "two million, forty-nine thousand, two hundred thirty-one".

Divisors: 1 3 17 23 51 69 391 1173 1747 5241 29699 40181 89097 120543 683077 2049231