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231411630 = 2357713721
BaseRepresentation
bin11011100101100…
…00111110101110
3121010102221002010
431302300332232
5433220133010
634543542050
75506652322
oct1562607656
9533387063
10231411630
11109697a8a
12655ba926
1338c34978
1422a3b982
15154b1620
hexdcb0fae

231411630 has 16 divisors (see below), whose sum is σ = 555387984. Its totient is φ = 61709760.

The previous prime is 231411623. The next prime is 231411637. The reversal of 231411630 is 36114132.

It is an interprime number because it is at equal distance from previous prime (231411623) and next prime (231411637).

It is a junction number, because it is equal to n+sod(n) for n = 231411597 and 231411606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231411637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3856831 + ... + 3856890.

It is an arithmetic number, because the mean of its divisors is an integer number (34711749).

Almost surely, 2231411630 is an apocalyptic number.

231411630 is an abundant number, since it is smaller than the sum of its proper divisors (323976354).

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

231411630 is a wasteful number, since it uses less digits than its factorization.

231411630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7713731.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 231411630 is about 15212.2197591279. The cubic root of 231411630 is about 613.9434831462.

Adding to 231411630 its reverse (36114132), we get a palindrome (267525762).

The spelling of 231411630 in words is "two hundred thirty-one million, four hundred eleven thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 7713721 15427442 23141163 38568605 46282326 77137210 115705815 231411630