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2238237 = 321714629
BaseRepresentation
bin1000100010011100011101
311012201021200
420202130131
51033110422
6115550113
725011321
oct10423435
94181250
102238237
111299691
128bb339
13604a01
14423981
152e32ac
hex22271d

2238237 has 12 divisors (see below), whose sum is σ = 3423420. Its totient is φ = 1404288.

The previous prime is 2238233. The next prime is 2238239. The reversal of 2238237 is 7328322.

It can be written as a sum of positive squares in 2 ways, for example, as 1058841 + 1179396 = 1029^2 + 1086^2 .

It is not a de Polignac number, because 2238237 - 22 = 2238233 is a prime.

It is a d-powerful number, because it can be written as 214 + 216 + 3 + 82 + 221 + 310 + 72 .

It is a self number, because there is not a number n which added to its sum of digits gives 2238237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7162 + ... + 7467.

It is an arithmetic number, because the mean of its divisors is an integer number (285285).

22238237 is an apocalyptic number.

It is an amenable number.

2238237 is a deficient number, since it is larger than the sum of its proper divisors (1185183).

2238237 is a wasteful number, since it uses less digits than its factorization.

2238237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14652 (or 14649 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2238237 is about 1496.0738618130. The cubic root of 2238237 is about 130.8083166723.

The spelling of 2238237 in words is "two million, two hundred thirty-eight thousand, two hundred thirty-seven".

Divisors: 1 3 9 17 51 153 14629 43887 131661 248693 746079 2238237