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2489938 = 211210289
BaseRepresentation
bin1001011111111001010010
311200111112221
421133321102
51114134223
6125211254
730110203
oct11377122
94614487
102489938
111450800
12a00b2a
13692449
1448b5aa
15342b5d
hex25fe52

2489938 has 12 divisors (see below), whose sum is σ = 4105710. Its totient is φ = 1131680.

The previous prime is 2489933. The next prime is 2489947. The reversal of 2489938 is 8399842.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1656369 + 833569 = 1287^2 + 913^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2489894 and 2489903.

It is not an unprimeable number, because it can be changed into a prime (2489933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4903 + ... + 5386.

22489938 is an apocalyptic number.

2489938 is a deficient number, since it is larger than the sum of its proper divisors (1615772).

2489938 is a wasteful number, since it uses less digits than its factorization.

2489938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313 (or 10302 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 2489938 is about 1577.9537382319. The cubic root of 2489938 is about 135.5385528656.

It can be divided in two parts, 248993 and 8, that added together give a square (249001 = 4992).

The spelling of 2489938 in words is "two million, four hundred eighty-nine thousand, nine hundred thirty-eight".

Divisors: 1 2 11 22 121 242 10289 20578 113179 226358 1244969 2489938