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31441252 = 2270111213
BaseRepresentation
bin111011111110…
…0000101100100
32012011101021211
41313330011210
531022110002
63041521204
7531150313
oct167740544
965141254
1031441252
1116825307
12a643204
13668acbb
14426627a
152b60dd7
hex1dfc164

31441252 has 12 divisors (see below), whose sum is σ = 55105596. Its totient is φ = 15696800.

The previous prime is 31441247. The next prime is 31441271. The reversal of 31441252 is 25214413.

It can be written as a sum of positive squares in 2 ways, for example, as 12916836 + 18524416 = 3594^2 + 4304^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803 + ... + 8410.

It is an arithmetic number, because the mean of its divisors is an integer number (4592133).

Almost surely, 231441252 is an apocalyptic number.

31441252 is the 2804-th decagonal number.

It is an amenable number.

31441252 is a deficient number, since it is larger than the sum of its proper divisors (23664344).

31441252 is a wasteful number, since it uses less digits than its factorization.

31441252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11918 (or 11916 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 31441252 is about 5607.2499498417. The cubic root of 31441252 is about 315.6215225183.

Adding to 31441252 its reverse (25214413), we get a palindrome (56655665).

The spelling of 31441252 in words is "thirty-one million, four hundred forty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 701 1402 2804 11213 22426 44852 7860313 15720626 31441252