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2238213 = 32572903
BaseRepresentation
bin1000100010011100000101
311012201020210
420202130011
51033110323
6115550033
725011255
oct10423405
94181223
102238213
11129966a
128bb319
136049b3
14423965
152e3293
hex222705

2238213 has 8 divisors (see below), whose sum is σ = 2996928. Its totient is φ = 1485824.

The previous prime is 2238211. The next prime is 2238217. The reversal of 2238213 is 3128322.

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 2238213 - 21 = 2238211 is a prime.

It is a d-powerful number, because it can be written as 214 + 216 + 33 + 82 + 221 + 1 + 310 .

It is a Curzon number.

2238213 is a lucky number.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 2238213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238211) 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, 681 + ... + 2222.

It is an arithmetic number, because the mean of its divisors is an integer number (374616).

22238213 is an apocalyptic number.

It is an amenable number.

2238213 is a deficient number, since it is larger than the sum of its proper divisors (758715).

2238213 is a wasteful number, since it uses less digits than its factorization.

2238213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163.

The product of its digits is 576, while the sum is 21.

The square root of 2238213 is about 1496.0658407971. The cubic root of 2238213 is about 130.8078491301.

The spelling of 2238213 in words is "two million, two hundred thirty-eight thousand, two hundred thirteen".

Divisors: 1 3 257 771 2903 8709 746071 2238213