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44130220 = 2256732933
BaseRepresentation
bin1010100001010…
…1111110101100
310002001001021121
42220111332230
542244131340
64213510324
71044046351
oct250257654
9102031247
1044130220
1122a01762
12129423a4
1391b1774
145c0a628
153d1a94a
hex2a15fac

44130220 has 24 divisors (see below), whose sum is σ = 94059504. Its totient is φ = 17388096.

The previous prime is 44130209. The next prime is 44130223. The reversal of 44130220 is 2203144.

It is a junction number, because it is equal to n+sod(n) for n = 44130194 and 44130203.

It is not an unprimeable number, because it can be changed into a prime (44130223) 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, 15127 + ... + 17806.

It is an arithmetic number, because the mean of its divisors is an integer number (3919146).

Almost surely, 244130220 is an apocalyptic number.

It is an amenable number.

44130220 is an abundant number, since it is smaller than the sum of its proper divisors (49929284).

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

44130220 is a wasteful number, since it uses less digits than its factorization.

44130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33009 (or 33007 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 44130220 is about 6643.0580307566. The cubic root of 44130220 is about 353.3827647309.

Adding to 44130220 its reverse (2203144), we get a palindrome (46333364).

The spelling of 44130220 in words is "forty-four million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 32933 65866 131732 164665 329330 658660 2206511 4413022 8826044 11032555 22065110 44130220