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231013235 = 5380312149
BaseRepresentation
bin11011100010011…
…11101101110011
3121002200200120202
431301033231303
5433114410420
634531225415
75503402655
oct1561175563
9532620522
10231013235
11109445732
126544826b
1338b2552b
14229766d5
1515433575
hexdc4fb73

231013235 has 8 divisors (see below), whose sum is σ = 277311600. Its totient is φ = 184746784.

The previous prime is 231013199. The next prime is 231013247. The reversal of 231013235 is 532310132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231013235 - 28 = 231012979 is a prime.

It is a super-2 number, since 2×2310132352 = 106734229490330450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12941 + ... + 25089.

It is an arithmetic number, because the mean of its divisors is an integer number (34663950).

Almost surely, 2231013235 is an apocalyptic number.

231013235 is a deficient number, since it is larger than the sum of its proper divisors (46298365).

231013235 is a wasteful number, since it uses less digits than its factorization.

231013235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15957.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 231013235 is about 15199.1195468685. The cubic root of 231013235 is about 613.5909619550.

Adding to 231013235 its reverse (532310132), we get a palindrome (763323367).

The spelling of 231013235 in words is "two hundred thirty-one million, thirteen thousand, two hundred thirty-five".

Divisors: 1 5 3803 12149 19015 60745 46202647 231013235