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231333200000 = 2755782619
BaseRepresentation
bin1101011101110010001…
…0001000000010000000
3211010010000020011110022
43113130202020002000
512242232244400000
6254134545153012
722466436520220
oct3273442100200
9733100204408
10231333200000
118a120619111
1238a0102b768
1318a789748c6
14b2a7610080
15603e14a585
hex35dc888080

231333200000 has 192 divisors, whose sum is σ = 658335988800. Its totient is φ = 79313280000.

The previous prime is 231333199987. The next prime is 231333200017. The reversal of 231333200000 is 2333132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2758691 + ... + 2841309.

It is an arithmetic number, because the mean of its divisors is an integer number (3428833275).

Almost surely, 2231333200000 is an apocalyptic number.

231333200000 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 231333200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329167994400).

231333200000 is an abundant number, since it is smaller than the sum of its proper divisors (427002788800).

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

231333200000 is an frugal number, since it uses more digits than its factorization.

231333200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82665 (or 82633 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 231333200000 its reverse (2333132), we get a palindrome (231335533132).

The spelling of 231333200000 in words is "two hundred thirty-one billion, three hundred thirty-three million, two hundred thousand".