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2832221 = 72711493
BaseRepresentation
bin1010110011011101011101
312022220002002
422303131131
51211112341
6140412045
733034130
oct12633535
95286062
102832221
111664987
12b47025
13782192
1453a217
153ae29b
hex2b375d

2832221 has 8 divisors (see below), whose sum is σ = 3250944. Its totient is φ = 2417040.

The previous prime is 2832211. The next prime is 2832223. The reversal of 2832221 is 1222382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2832221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2832193 and 2832202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2832223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151 + ... + 2643.

It is an arithmetic number, because the mean of its divisors is an integer number (406368).

22832221 is an apocalyptic number.

It is an amenable number.

2832221 is a deficient number, since it is larger than the sum of its proper divisors (418723).

2832221 is a wasteful number, since it uses less digits than its factorization.

2832221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 384, while the sum is 20.

The square root of 2832221 is about 1682.9203783899. The cubic root of 2832221 is about 141.4845592411.

The spelling of 2832221 in words is "two million, eight hundred thirty-two thousand, two hundred twenty-one".

Divisors: 1 7 271 1493 1897 10451 404603 2832221