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14431305028 = 2271993258607
BaseRepresentation
bin11010111000010110…
…00011110101000100
31101020202001020211211
431130023003311010
5214023403230103
610344000541204
71020423032410
oct153413036504
941222036754
1014431305028
116136106078
122969021804
13148ca9145a
149ac8a9d40
15596e2c36d
hex35c2c3d44

14431305028 has 24 divisors (see below), whose sum is σ = 28877203712. Its totient is φ = 6181717824.

The previous prime is 14431305023. The next prime is 14431305029. The reversal of 14431305028 is 82050313441.

It is a super-2 number, since 2×144313050282 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14431305023) 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, 73500 + ... + 185107.

Almost surely, 214431305028 is an apocalyptic number.

It is an amenable number.

14431305028 is an abundant number, since it is smaller than the sum of its proper divisors (14445898684).

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

14431305028 is a wasteful number, since it uses less digits than its factorization.

14431305028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260611 (or 260609 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 14431305028 its reverse (82050313441), we get a palindrome (96481618469).

The spelling of 14431305028 in words is "fourteen billion, four hundred thirty-one million, three hundred five thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 1993 3986 7972 13951 27902 55804 258607 517214 1034428 1810249 3620498 7240996 515403751 1030807502 2061615004 3607826257 7215652514 14431305028