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143111430400 = 285243895843
BaseRepresentation
bin1000010101001000011…
…0110010000100000000
3111200101200101220212011
42011102012302010000
54321043011233100
6145424450342304
713224302041651
oct2052206620400
9450350356764
10143111430400
1155769742924
122389b88a994
131065938c983
146cd895d528
153ac8e76bba
hex21521b2100

143111430400 has 216 divisors, whose sum is σ = 366596223840. Its totient is φ = 55275601920.

The previous prime is 143111430373. The next prime is 143111430479. The reversal of 143111430400 is 4034111341.

It is a happy number.

It is a super-2 number, since 2×1431114304002 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24489879 + ... + 24495721.

It is an arithmetic number, because the mean of its divisors is an integer number (1697204740).

Almost surely, 2143111430400 is an apocalyptic number.

143111430400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143111430400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183298111920).

143111430400 is an abundant number, since it is smaller than the sum of its proper divisors (223484793440).

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

143111430400 is an equidigital number, since it uses as much as digits as its factorization.

143111430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001 (or 5982 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 143111430400 its reverse (4034111341), we get a palindrome (147145541741).

The spelling of 143111430400 in words is "one hundred forty-three billion, one hundred eleven million, four hundred thirty thousand, four hundred".