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231302320000000 = 210574197727
BaseRepresentation
bin110100100101111001000100…
…100111101000110000000000
31010022222021201101011110222121
4310211321010213220300000
5220304124122410000000
62135534452514014024
766502020054246004
oct6445710447506000
91108867641143877
10231302320000000
1167777843667967
1221b37b32b77314
139c0a93b350b12
144119140712704
151bb1a867b0b1a
hexd25e449e8c00

231302320000000 has 704 divisors, whose sum is σ = 598995444692736. Its totient is φ = 89210880000000.

The previous prime is 231302319999937. The next prime is 231302320000121. The reversal of 231302320000000 is 23203132.

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

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 63 ways as a sum of consecutive naturals, for example, 318159999637 + ... + 318160000363.

Almost surely, 2231302320000000 is an apocalyptic number.

231302320000000 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 231302320000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299497722346368).

231302320000000 is an abundant number, since it is smaller than the sum of its proper divisors (367693124692736).

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

231302320000000 is an frugal number, since it uses more digits than its factorization.

231302320000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 872 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 231302320000000 its reverse (23203132), we get a palindrome (231302343203132).

The spelling of 231302320000000 in words is "two hundred thirty-one trillion, three hundred two billion, three hundred twenty million", and thus it is an aban number.