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14143444 = 227505123
BaseRepresentation
bin110101111100…
…111111010100
3222121120011021
4311330333110
512110042234
61223050524
7231134350
oct65747724
928546137
1014143444
117a901a7
1248a0a44
132c12803
141c42460
1513959b4
hexd7cfd4

14143444 has 12 divisors (see below), whose sum is σ = 28286944. Its totient is φ = 6061464.

The previous prime is 14143427. The next prime is 14143453. The reversal of 14143444 is 44434141.

It is a happy number.

14143444 is an admirable number.

It is a super-2 number, since 2×141434442 = 400074016362272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252534 + ... + 252589.

Almost surely, 214143444 is an apocalyptic number.

14143444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

14143444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

14143444 is a wasteful number, since it uses less digits than its factorization.

14143444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505134 (or 505132 counting only the distinct ones).

The product of its digits is 3072, while the sum is 25.

The square root of 14143444 is about 3760.7770473667. Note that the first 3 decimals coincide. The cubic root of 14143444 is about 241.8345749221.

Adding to 14143444 its reverse (44434141), we get a palindrome (58577585).

The spelling of 14143444 in words is "fourteen million, one hundred forty-three thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 28 505123 1010246 2020492 3535861 7071722 14143444