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2788233 = 37314283
BaseRepresentation
bin1010101000101110001001
312020122201220
422220232021
51203210413
6135432253
732461650
oct12505611
95218656
102788233
111634928
12b25689
13768156
14528197
153a1223
hex2a8b89

2788233 has 16 divisors (see below), whose sum is σ = 4386816. Its totient is φ = 1541520.

The previous prime is 2788217. The next prime is 2788273. The reversal of 2788233 is 3328872.

It is a happy number.

It is not a de Polignac number, because 2788233 - 24 = 2788217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2788194 and 2788203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491 + ... + 2792.

It is an arithmetic number, because the mean of its divisors is an integer number (274176).

22788233 is an apocalyptic number.

It is an amenable number.

2788233 is a deficient number, since it is larger than the sum of its proper divisors (1598583).

2788233 is a wasteful number, since it uses less digits than its factorization.

2788233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324.

The product of its digits is 16128, while the sum is 33.

The square root of 2788233 is about 1669.8002874596. The cubic root of 2788233 is about 140.7482555912.

The spelling of 2788233 in words is "two million, seven hundred eighty-eight thousand, two hundred thirty-three".

Divisors: 1 3 7 21 31 93 217 651 4283 12849 29981 89943 132773 398319 929411 2788233