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2250391 = 111315737
BaseRepresentation
bin1000100101011010010111
311020022221211
420211122113
51034003031
6120122251
725061623
oct10453227
94208854
102250391
1112a7830
12906387
1360a3c0
14428183
152e6bb1
hex225697

2250391 has 8 divisors (see below), whose sum is σ = 2643984. Its totient is φ = 1888320.

The previous prime is 2250359. The next prime is 2250397. The reversal of 2250391 is 1930522.

2250391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2250391 - 25 = 2250359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2250397) 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 7 ways as a sum of consecutive naturals, for example, 7726 + ... + 8011.

It is an arithmetic number, because the mean of its divisors is an integer number (330498).

22250391 is an apocalyptic number.

2250391 is a deficient number, since it is larger than the sum of its proper divisors (393593).

2250391 is a wasteful number, since it uses less digits than its factorization.

2250391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15761.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2250391 is about 1500.1303276716. The cubic root of 2250391 is about 131.0446597144.

The spelling of 2250391 in words is "two million, two hundred fifty thousand, three hundred ninety-one".

Divisors: 1 11 13 143 15737 173107 204581 2250391