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2230831 = 6136571
BaseRepresentation
bin1000100000101000101111
311012100010101
420200220233
51032341311
6115451531
724650611
oct10405057
94170111
102230831
111294069
128b6ba7
13601525
14420db1
152e0ec1
hex220a2f

2230831 has 4 divisors (see below), whose sum is σ = 2267464. Its totient is φ = 2194200.

The previous prime is 2230829. The next prime is 2230861. The reversal of 2230831 is 1380322.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2230831 - 21 = 2230829 is a prime.

It is a super-3 number, since 3×22308313 = 33305907180380838573, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2230799 and 2230808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2230801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18225 + ... + 18346.

It is an arithmetic number, because the mean of its divisors is an integer number (566866).

22230831 is an apocalyptic number.

2230831 is a deficient number, since it is larger than the sum of its proper divisors (36633).

2230831 is an equidigital number, since it uses as much as digits as its factorization.

2230831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36632.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2230831 is about 1493.5966657702. The cubic root of 2230831 is about 130.6638820326.

The spelling of 2230831 in words is "two million, two hundred thirty thousand, eight hundred thirty-one".

Divisors: 1 61 36571 2230831