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144305018 = 21113504563
BaseRepresentation
bin10001001100111…
…10101101111010
3101001112110021022
420212132231322
5243420230033
622152542442
73401400224
oct1046365572
9331473238
10144305018
1174502550
12403b1a22
1323b869b0
1415245414
15ca07098
hex899eb7a

144305018 has 16 divisors (see below), whose sum is σ = 254300256. Its totient is φ = 60547440.

The previous prime is 144305011. The next prime is 144305023. The reversal of 144305018 is 810503441.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (144305011) 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, 251996 + ... + 252567.

It is an arithmetic number, because the mean of its divisors is an integer number (15893766).

Almost surely, 2144305018 is an apocalyptic number.

144305018 is a deficient number, since it is larger than the sum of its proper divisors (109995238).

144305018 is a wasteful number, since it uses less digits than its factorization.

144305018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504589.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 144305018 is about 12012.7023604183. The cubic root of 144305018 is about 524.5180980807.

Adding to 144305018 its reverse (810503441), we get a palindrome (954808459).

The spelling of 144305018 in words is "one hundred forty-four million, three hundred five thousand, eighteen".

Divisors: 1 2 11 13 22 26 143 286 504563 1009126 5550193 6559319 11100386 13118638 72152509 144305018