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144144030 = 2355239187
BaseRepresentation
bin10001001011101…
…11011010011110
3101001020021102210
420211313122132
5243400102110
622145301250
73400126662
oct1045673236
9331207383
10144144030
11744025a8
1240334826
1323b2b634
14152028a2
15c9c4520
hex897769e

144144030 has 32 divisors (see below), whose sum is σ = 346644864. Its totient is φ = 38360736.

The previous prime is 144144019. The next prime is 144144031. The reversal of 144144030 is 30441441.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 144143988 and 144144006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144144031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11097 + ... + 20283.

It is an arithmetic number, because the mean of its divisors is an integer number (10832652).

Almost surely, 2144144030 is an apocalyptic number.

144144030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144144030 is an abundant number, since it is smaller than the sum of its proper divisors (202500834).

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

144144030 is a wasteful number, since it uses less digits than its factorization.

144144030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144144030 is about 12005.9997501249. Note that the first 3 decimals coincide. The cubic root of 144144030 is about 524.3229731033.

Adding to 144144030 its reverse (30441441), we get a palindrome (174585471).

The spelling of 144144030 in words is "one hundred forty-four million, one hundred forty-four thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 523 1046 1569 2615 3138 5230 7845 9187 15690 18374 27561 45935 55122 91870 137805 275610 4804801 9609602 14414403 24024005 28828806 48048010 72072015 144144030