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244330040 = 23510956039
BaseRepresentation
bin11101001000000…
…10111000111000
3122000202020210202
432210002320320
51000022030130
640124501332
76024525323
oct1644027070
9560666722
10244330040
11115a10859
12699aa848
133b8089b6
14246417ba
15166b4145
hexe902e38

244330040 has 32 divisors (see below), whose sum is σ = 554796000. Its totient is φ = 96833664.

The previous prime is 244330019. The next prime is 244330049. The reversal of 244330040 is 40033442.

244330040 = T269 + T270 + ... + T1140.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 244329994 and 244330021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244330049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23660 + ... + 32379.

It is an arithmetic number, because the mean of its divisors is an integer number (17337375).

Almost surely, 2244330040 is an apocalyptic number.

244330040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244330040 is an abundant number, since it is smaller than the sum of its proper divisors (310465960).

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

244330040 is a wasteful number, since it uses less digits than its factorization.

244330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56159 (or 56155 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 244330040 is about 15631.0601048042. The cubic root of 244330040 is about 625.1615923504.

Adding to 244330040 its reverse (40033442), we get a palindrome (284363482).

The spelling of 244330040 in words is "two hundred forty-four million, three hundred thirty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 109 218 436 545 872 1090 2180 4360 56039 112078 224156 280195 448312 560390 1120780 2241560 6108251 12216502 24433004 30541255 48866008 61082510 122165020 244330040