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231043000000 = 26562931257
BaseRepresentation
bin1101011100101100111…
…1000110011011000000
3211002100210011110220011
43113023033012123000
512241134002000000
6254050101154304
722456314045121
oct3271317063300
9732323143804
10231043000000
1189a918285aa
123893b9bb994
1318a307c8627
14b27ac6c048
1560239252ba
hex35cb3c66c0

231043000000 has 392 divisors, whose sum is σ = 614354636160. Its totient is φ = 86016000000.

The previous prime is 231042999997. The next prime is 231043000037. The reversal of 231043000000 is 340132.

231043000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55 ways as a sum of consecutive naturals, for example, 898999872 + ... + 899000128.

Almost surely, 2231043000000 is an apocalyptic number.

231043000000 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 231043000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307177318080).

231043000000 is an abundant number, since it is smaller than the sum of its proper divisors (383311636160).

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

231043000000 is an frugal number, since it uses more digits than its factorization.

231043000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 231043000000 its reverse (340132), we get a palindrome (231043340132).

The spelling of 231043000000 in words is "two hundred thirty-one billion, forty-three million", and thus it is an aban number.