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231230310 = 2357707677
BaseRepresentation
bin11011100100001…
…00101101100110
3121010002201100120
431302010231212
5433143332220
634540022410
75505265563
oct1562045546
9533081316
10231230310
11109583833
1265531a06
1338ba028c
14229d186a
1515477a40
hexdc84b66

231230310 has 16 divisors (see below), whose sum is σ = 554952816. Its totient is φ = 61661408.

The previous prime is 231230303. The next prime is 231230341. The reversal of 231230310 is 13032132.

231230310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2312303102 = 106934912525392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231230310.

It is a congruent number.

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, 3853809 + ... + 3853868.

It is an arithmetic number, because the mean of its divisors is an integer number (34684551).

Almost surely, 2231230310 is an apocalyptic number.

231230310 is an abundant number, since it is smaller than the sum of its proper divisors (323722506).

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

231230310 is a wasteful number, since it uses less digits than its factorization.

231230310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7707687.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 231230310 is about 15206.2589087520. The cubic root of 231230310 is about 613.7830917265.

Adding to 231230310 its reverse (13032132), we get a palindrome (244262442).

It can be divided in two parts, 231230 and 310, that added together give a triangular number (231540 = T680).

The spelling of 231230310 in words is "two hundred thirty-one million, two hundred thirty thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 7707677 15415354 23123031 38538385 46246062 77076770 115615155 231230310