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2238930 = 232524877
BaseRepresentation
bin1000100010100111010010
311012202020100
420202213102
51033121210
6115553230
725013331
oct10424722
94182210
102238930
11129a161
128bb816
13605115
14423d18
152e35c0
hex2229d2

2238930 has 24 divisors (see below), whose sum is σ = 5821452. Its totient is φ = 597024.

The previous prime is 2238823. The next prime is 2238931. The reversal of 2238930 is 398322.

It can be written as a sum of positive squares in 2 ways, for example, as 1830609 + 408321 = 1353^2 + 639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2238894 and 2238903.

It is not an unprimeable number, because it can be changed into a prime (2238931) 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, 12349 + ... + 12528.

22238930 is an apocalyptic number.

2238930 is an abundant number, since it is smaller than the sum of its proper divisors (3582522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2238930 is a wasteful number, since it uses less digits than its factorization.

2238930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24890 (or 24887 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2238930 is about 1496.3054501003. The cubic root of 2238930 is about 130.8218155123.

The spelling of 2238930 in words is "two million, two hundred thirty-eight thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 24877 49754 74631 124385 149262 223893 248770 373155 447786 746310 1119465 2238930