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231301243204320 = 25352929356711497
BaseRepresentation
bin110100100101111000000100…
…011011111111001011100000
31010022222011221022222121000010
4310211320010123333023200
5220304114421230014240
62135534154010324520
766501651300526002
oct6445700433771340
91108864838877003
10231301243204320
1167777340861383
1221b37892429740
139c0a7c9235c03
14411907b6d4372
151bb1a21eb0280
hexd25e046ff2e0

231301243204320 has 192 divisors, whose sum is σ = 756295463488320. Its totient is φ = 59350168485888.

The previous prime is 231301243204277. The next prime is 231301243204351. The reversal of 231301243204320 is 23402342103132.

It is a happy number.

231301243204320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24277189 + ... + 32434308.

It is an arithmetic number, because the mean of its divisors is an integer number (3939038872335).

Almost surely, 2231301243204320 is an apocalyptic number.

231301243204320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231301243204320 is an abundant number, since it is smaller than the sum of its proper divisors (524994220284000).

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

231301243204320 is a wasteful number, since it uses less digits than its factorization.

231301243204320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56711837 (or 56711829 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 231301243204320 its reverse (23402342103132), we get a palindrome (254703585307452).

The spelling of 231301243204320 in words is "two hundred thirty-one trillion, three hundred one billion, two hundred forty-three million, two hundred four thousand, three hundred twenty".