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13203144000 = 263253183377
BaseRepresentation
bin11000100101111011…
…11111110101000000
31021002011001012122100
430102331333311000
5204020001102000
610022045110400
7645120605124
oct142275776500
937064035570
1013203144000
115665915562
122685858400
1313254ba057
148d3729584
155241cca00
hex312f7fd40

13203144000 has 168 divisors, whose sum is σ = 47230104168. Its totient is φ = 3520819200.

The previous prime is 13203143969. The next prime is 13203144011. The reversal of 13203144000 is 44130231.

It can be written as a sum of positive squares in 4 ways, for example, as 3736632384 + 9466511616 = 61128^2 + 97296^2 .

It is a super-2 number, since 2×132031440002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19689 + ... + 163688.

Almost surely, 213203144000 is an apocalyptic number.

13203144000 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 13203144000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23615052084).

13203144000 is an abundant number, since it is smaller than the sum of its proper divisors (34026960168).

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

13203144000 is a wasteful number, since it uses less digits than its factorization.

13203144000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183410 (or 183387 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13203144000 its reverse (44130231), we get a palindrome (13247274231).

The spelling of 13203144000 in words is "thirteen billion, two hundred three million, one hundred forty-four thousand".