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144334242 = 232135771069
BaseRepresentation
bin10001001101001…
…01110110100010
3101001120221100200
420212211312202
5243422143432
622153330030
73401551353
oct1046456642
9331527320
10144334242
11745224a8
1240406916
1323b970a0
1415251d2a
15ca10a7c
hex89a5da2

144334242 has 48 divisors (see below), whose sum is σ = 337679160. Its totient is φ = 44292096.

The previous prime is 144334219. The next prime is 144334277. The reversal of 144334242 is 242433441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 135280161 + 9054081 = 11631^2 + 3009^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134484 + ... + 135552.

Almost surely, 2144334242 is an apocalyptic number.

144334242 is an abundant number, since it is smaller than the sum of its proper divisors (193344918).

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

144334242 is a wasteful number, since it uses less digits than its factorization.

144334242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1667 (or 1664 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 144334242 is about 12013.9186779335. The cubic root of 144334242 is about 524.5535033690.

Adding to 144334242 its reverse (242433441), we get a palindrome (386767683).

The spelling of 144334242 in words is "one hundred forty-four million, three hundred thirty-four thousand, two hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 577 1069 1154 1731 2138 3207 3462 5193 6414 7501 9621 10386 13897 15002 19242 22503 27794 41691 45006 67509 83382 125073 135018 250146 616813 1233626 1850439 3700878 5551317 8018569 11102634 16037138 24055707 48111414 72167121 144334242