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144044442 = 23235922291
BaseRepresentation
bin10001001010111…
…11000110011010
3101001001012211100
420211133012122
5243333410232
622143212230
73366233433
oct1045370632
9331035740
10144044442
11743447a3
12402a7076
1323ac51c9
14151b848a
15c9a4c7c
hex895f19a

144044442 has 24 divisors (see below), whose sum is σ = 312979680. Its totient is φ = 47878920.

The previous prime is 144044437. The next prime is 144044443. The reversal of 144044442 is 244440441.

144044442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (144044443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4684 + ... + 17607.

It is an arithmetic number, because the mean of its divisors is an integer number (13040820).

Almost surely, 2144044442 is an apocalyptic number.

144044442 is an abundant number, since it is smaller than the sum of its proper divisors (168935238).

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

144044442 is a wasteful number, since it uses less digits than its factorization.

144044442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22658 (or 22655 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

The square root of 144044442 is about 12001.8516071480. The cubic root of 144044442 is about 524.2021950497.

Adding to 144044442 its reverse (244440441), we get a palindrome (388484883).

The spelling of 144044442 in words is "one hundred forty-four million, forty-four thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 359 718 1077 2154 3231 6462 22291 44582 66873 133746 200619 401238 8002469 16004938 24007407 48014814 72022221 144044442