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144214312 = 23111638799
BaseRepresentation
bin10001001100010…
…00100100101000
3101001100211211211
420212020210220
5243404324222
622151002504
73400541614
oct1046104450
9331324754
10144214312
1174450390
1240369434
1323b54618
1415220344
15c9da277
hex8988928

144214312 has 16 divisors (see below), whose sum is σ = 294984000. Its totient is φ = 65551920.

The previous prime is 144214289. The next prime is 144214319. The reversal of 144214312 is 213412441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (144214319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819312 + ... + 819487.

It is an arithmetic number, because the mean of its divisors is an integer number (18436500).

Almost surely, 2144214312 is an apocalyptic number.

It is an amenable number.

144214312 is an abundant number, since it is smaller than the sum of its proper divisors (150769688).

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

144214312 is a wasteful number, since it uses less digits than its factorization.

144214312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638816 (or 1638812 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 144214312 is about 12008.9263466806. The cubic root of 144214312 is about 524.4081760299.

Adding to 144214312 its reverse (213412441), we get a palindrome (357626753).

The spelling of 144214312 in words is "one hundred forty-four million, two hundred fourteen thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 44 88 1638799 3277598 6555196 13110392 18026789 36053578 72107156 144214312