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143213430400 = 275244754197
BaseRepresentation
bin1000010101100000101…
…1111000011010000000
3111200122210100001112221
42011120023320122000
54321300114233100
6145442532500424
713226651034025
oct2053013703200
9450583301487
10143213430400
115581127aa47
1223909a7a714
13106745538c1
146d0831154c
153ad2dc401a
hex21582f8680

143213430400 has 48 divisors (see below), whose sum is σ = 353781935190. Its totient is φ = 57285370880.

The previous prime is 143213430391. The next prime is 143213430413. The reversal of 143213430400 is 4034312341.

It can be written as a sum of positive squares in 3 ways, for example, as 81188524096 + 62024906304 = 284936^2 + 249048^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22373899 + ... + 22380298.

Almost surely, 2143213430400 is an apocalyptic number.

143213430400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143213430400 is an abundant number, since it is smaller than the sum of its proper divisors (210568504790).

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

143213430400 is an equidigital number, since it uses as much as digits as its factorization.

143213430400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44754221 (or 44754204 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 143213430400 its reverse (4034312341), we get a palindrome (147247742741).

The spelling of 143213430400 in words is "one hundred forty-three billion, two hundred thirteen million, four hundred thirty thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 44754197 89508394 179016788 223770985 358033576 447541970 716067152 895083940 1118854925 1432134304 1790167880 2237709850 2864268608 3580335760 4475419700 5728537216 7160671520 8950839400 14321343040 17901678800 28642686080 35803357600 71606715200 143213430400