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243043000000 = 2656359677
BaseRepresentation
bin1110001001011001111…
…1011101111011000000
3212020100002021122020121
43202112133131323000
512440223002000000
6303352530550024
723362555261633
oct3422637357300
9766302248217
10243043000000
119408a48a179
123b12a738314
1319bc3960148
14ba98889c1a
1564c7195b1a
hex38967ddec0

243043000000 has 196 divisors, whose sum is σ = 605425062960. Its totient is φ = 96803200000.

The previous prime is 243042999977. The next prime is 243043000001. The reversal of 243043000000 is 340342.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (243043000001) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 358999662 + ... + 359000338.

Almost surely, 2243043000000 is an apocalyptic number.

243043000000 is a gapful number since it is divisible by the number (20) 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 243043000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302712531480).

243043000000 is an abundant number, since it is smaller than the sum of its proper divisors (362382062960).

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

243043000000 is an frugal number, since it uses more digits than its factorization.

243043000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 243043000000 its reverse (340342), we get a palindrome (243043340342).

The spelling of 243043000000 in words is "two hundred forty-three billion, forty-three million", and thus it is an aban number.