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14401431 = 32111743199
BaseRepresentation
bin110110111011…
…111110010111
31000002200001100
4312323332113
512141321211
61232401143
7233260452
oct66737627
930080040
1014401431
118147010
1249a61b3
132ca3075
141cac499
1513e7156
hexdbbf97

14401431 has 48 divisors (see below), whose sum is σ = 24710400. Its totient is φ = 7983360.

The previous prime is 14401421. The next prime is 14401459. The reversal of 14401431 is 13410441.

It is not a de Polignac number, because 14401431 - 211 = 14399383 is a prime.

It is a super-2 number, since 2×144014312 = 414802429695522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14401421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72270 + ... + 72468.

It is an arithmetic number, because the mean of its divisors is an integer number (514800).

Almost surely, 214401431 is an apocalyptic number.

14401431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14401431 is a deficient number, since it is larger than the sum of its proper divisors (10308969).

14401431 is a wasteful number, since it uses less digits than its factorization.

14401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 14401431 is about 3794.9217383235. The cubic root of 14401431 is about 243.2961384736.

Adding to 14401431 its reverse (13410441), we get a palindrome (27811872).

The spelling of 14401431 in words is "fourteen million, four hundred one thousand, four hundred thirty-one".

Divisors: 1 3 9 11 17 33 43 51 99 129 153 187 199 387 473 561 597 731 1419 1683 1791 2189 2193 3383 4257 6567 6579 8041 8557 10149 19701 24123 25671 30447 37213 72369 77013 94127 111639 145469 282381 334917 436407 847143 1309221 1600159 4800477 14401431