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2528244 = 223270229
BaseRepresentation
bin1001101001001111110100
311202110002200
421221033310
51121400434
6130104500
730326655
oct11511764
94673080
102528244
111477564
12a1b130
136a6a04
1449b52c
1534e199
hex2693f4

2528244 has 18 divisors (see below), whose sum is σ = 6390930. Its totient is φ = 842736.

The previous prime is 2528243. The next prime is 2528261. The reversal of 2528244 is 4428252.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2528100 + 144 = 1590^2 + 12^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35079 + ... + 35150.

22528244 is an apocalyptic number.

It is an amenable number.

2528244 is an abundant number, since it is smaller than the sum of its proper divisors (3862686).

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

2528244 is a wasteful number, since it uses less digits than its factorization.

2528244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70239 (or 70234 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 2528244 is about 1590.0452823741. The cubic root of 2528244 is about 136.2300748014.

It can be divided in two parts, 2528 and 244, that added together give a palindrome (2772).

The spelling of 2528244 in words is "two million, five hundred twenty-eight thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 36 70229 140458 210687 280916 421374 632061 842748 1264122 2528244