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44001142212 = 2236481565771
BaseRepresentation
bin101000111110101011…
…000010010111000100
311012120111220121202210
4220332223002113010
51210103243022322
632114105103420
73115250352306
oct507653022704
9135514817683
1044001142212
111772a552445
12863ba87b70
1341c2cb3b31
1421b5b3b976
151227dd570c
hexa3eac25c4

44001142212 has 24 divisors (see below), whose sum is σ = 102685354912. Its totient is φ = 14664758400.

The previous prime is 44001142201. The next prime is 44001142219. The reversal of 44001142212 is 21224110044.

It is a super-2 number, since 2×440011422122 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (44001142219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205114 + ... + 360657.

Almost surely, 244001142212 is an apocalyptic number.

It is an amenable number.

44001142212 is an abundant number, since it is smaller than the sum of its proper divisors (58684212700).

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

44001142212 is a wasteful number, since it uses less digits than its factorization.

44001142212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572259 (or 572257 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 44001142212 its reverse (21224110044), we get a palindrome (65225252256).

The spelling of 44001142212 in words is "forty-four billion, one million, one hundred forty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 6481 12962 19443 25924 38886 77772 565771 1131542 1697313 2263084 3394626 6789252 3666761851 7333523702 11000285553 14667047404 22000571106 44001142212