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4444132240 = 245413313441
BaseRepresentation
bin1000010001110010…
…00001001110010000
3102110201102022100101
410020321001032100
533100144212430
62012553102144
7215062333522
oct41071011620
912421368311
104444132240
111980662369
12a403b7954
1355a945662
14302325a12
151b0254dca
hex108e41390

4444132240 has 40 divisors (see below), whose sum is σ = 10335876408. Its totient is φ = 1777090560.

The previous prime is 4444132237. The next prime is 4444132249. The reversal of 4444132240 is 422314444.

It can be written as a sum of positive squares in 4 ways, for example, as 260112384 + 4184019856 = 16128^2 + 64684^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×44441322402 = 39500622733214835200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4444132199 and 4444132208.

It is not an unprimeable number, because it can be changed into a prime (4444132249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323920 + ... + 337360.

Almost surely, 24444132240 is an apocalyptic number.

4444132240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4444132240 is an abundant number, since it is smaller than the sum of its proper divisors (5891744168).

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

4444132240 is a wasteful number, since it uses less digits than its factorization.

4444132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17587 (or 17581 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 4444132240 is about 66664.3250922111. The cubic root of 4444132240 is about 1644.1028838670.

Adding to 4444132240 its reverse (422314444), we get a palindrome (4866446684).

The spelling of 4444132240 in words is "four billion, four hundred forty-four million, one hundred thirty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4133 8266 13441 16532 20665 26882 33064 41330 53764 66128 67205 82660 107528 134410 165320 215056 268820 330640 537640 1075280 55551653 111103306 222206612 277758265 444413224 555516530 888826448 1111033060 2222066120 4444132240