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231230302 = 2313729521
BaseRepresentation
bin11011100100001…
…00101101011110
3121010002201100021
431302010231132
5433143332202
634540022354
75505265552
oct1562045536
9533081307
10231230302
11109583826
12655319ba
1338ba0284
14229d1862
1515477a37
hexdc84b5e

231230302 has 8 divisors (see below), whose sum is σ = 358034112. Its totient is φ = 111885600.

The previous prime is 231230287. The next prime is 231230303. The reversal of 231230302 is 203032132.

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

It is a super-2 number, since 2×2312303022 = 106934905126022408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231230303) 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, 1864699 + ... + 1864822.

It is an arithmetic number, because the mean of its divisors is an integer number (44754264).

Almost surely, 2231230302 is an apocalyptic number.

231230302 is a deficient number, since it is larger than the sum of its proper divisors (126803810).

231230302 is a wasteful number, since it uses less digits than its factorization.

231230302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729554.

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

The square root of 231230302 is about 15206.2586457024. The cubic root of 231230302 is about 613.7830846480.

Adding to 231230302 its reverse (203032132), we get a palindrome (434262434).

The spelling of 231230302 in words is "two hundred thirty-one million, two hundred thirty thousand, three hundred two".

Divisors: 1 2 31 62 3729521 7459042 115615151 231230302