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144444412 = 22713073947
BaseRepresentation
bin10001001110000…
…00101111111100
3101001210112111001
420213000233330
5243434210122
622155540044
73402520510
oct1047005774
9331715431
10144444412
1174598252
124045a624
1323c05288
1415280140
15ca33527
hex89c0bfc

144444412 has 24 divisors (see below), whose sum is σ = 289183104. Its totient is φ = 61841712.

The previous prime is 144444383. The next prime is 144444431. The reversal of 144444412 is 214444441.

144444412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34623 + ... + 38569.

It is an arithmetic number, because the mean of its divisors is an integer number (12049296).

Almost surely, 2144444412 is an apocalyptic number.

It is an amenable number.

144444412 is an abundant number, since it is smaller than the sum of its proper divisors (144738692).

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

144444412 is a wasteful number, since it uses less digits than its factorization.

144444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265 (or 5263 counting only the distinct ones).

The product of its digits is 8192, while the sum is 28.

The square root of 144444412 is about 12018.5029017761. The cubic root of 144444412 is about 524.6869329262.

Adding to 144444412 its reverse (214444441), we get a palindrome (358888853).

It can be divided in two parts, 14444441 and 2, that multiplied together give a palindrome (28888882).

The spelling of 144444412 in words is "one hundred forty-four million, four hundred forty-four thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 1307 2614 3947 5228 7894 9149 15788 18298 27629 36596 55258 110516 5158729 10317458 20634916 36111103 72222206 144444412