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231125255320 = 2355778131383
BaseRepresentation
bin1101011101000000100…
…0111000010010011000
3211002120111221110222111
43113100020320102120
512241321031132240
6254102200202104
722461333153421
oct3272010702230
9732514843874
10231125255320
118a0241aa203
1238963469334
1318a4486840b
14b287b60648
15602ac721ea
hex35d0238498

231125255320 has 16 divisors (see below), whose sum is σ = 520031824560. Its totient is φ = 92450102112.

The previous prime is 231125255311. The next prime is 231125255329. The reversal of 231125255320 is 23552521132.

It is an interprime number because it is at equal distance from previous prime (231125255311) and next prime (231125255329).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231125255329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889065652 + ... + 2889065731.

It is an arithmetic number, because the mean of its divisors is an integer number (32501989035).

Almost surely, 2231125255320 is an apocalyptic number.

231125255320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231125255320 is an abundant number, since it is smaller than the sum of its proper divisors (288906569240).

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

231125255320 is a wasteful number, since it uses less digits than its factorization.

231125255320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5778131394 (or 5778131390 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 231125255320 its reverse (23552521132), we get a palindrome (254677776452).

The spelling of 231125255320 in words is "two hundred thirty-one billion, one hundred twenty-five million, two hundred fifty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5778131383 11556262766 23112525532 28890656915 46225051064 57781313830 115562627660 231125255320