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231127130 = 25139711831
BaseRepresentation
bin11011100011010…
…11100001011010
3121002220110211002
431301223201122
5433132032010
634533505002
75504356013
oct1561534132
9532813732
10231127130
11109513263
12654a2162
1338b65320
14229a600a
15154571a5
hexdc6b85a

231127130 has 32 divisors (see below), whose sum is σ = 448737408. Its totient is φ = 85204800.

The previous prime is 231127063. The next prime is 231127133. The reversal of 231127130 is 31721132.

231127130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (231127133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125315 + ... + 127145.

It is an arithmetic number, because the mean of its divisors is an integer number (14023044).

Almost surely, 2231127130 is an apocalyptic number.

231127130 is a deficient number, since it is larger than the sum of its proper divisors (217610278).

231127130 is a wasteful number, since it uses less digits than its factorization.

231127130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 231127130 is about 15202.8658482537. The cubic root of 231127130 is about 613.6917836832.

Adding to 231127130 its reverse (31721132), we get a palindrome (262848262).

The spelling of 231127130 in words is "two hundred thirty-one million, one hundred twenty-seven thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 971 1831 1942 3662 4855 9155 9710 12623 18310 23803 25246 47606 63115 119015 126230 238030 1777901 3555802 8889505 17779010 23112713 46225426 115563565 231127130