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231301130 = 2523130113
BaseRepresentation
bin11011100100101…
…10000000001010
3121010020022111112
431302112000022
5433203114010
634541330322
75506012214
oct1562260012
9533208445
10231301130
11109621a65
12655669a2
1338bc6598
1422a0d5b4
151548da05
hexdc9600a

231301130 has 8 divisors (see below), whose sum is σ = 416342052. Its totient is φ = 92520448.

The previous prime is 231301127. The next prime is 231301139. The reversal of 231301130 is 31103132.

It can be written as a sum of positive squares in 2 ways, for example, as 228100609 + 3200521 = 15103^2 + 1789^2 .

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

It is not an unprimeable number, because it can be changed into a prime (231301139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11565047 + ... + 11565066.

Almost surely, 2231301130 is an apocalyptic number.

231301130 is a deficient number, since it is larger than the sum of its proper divisors (185040922).

231301130 is a wasteful number, since it uses less digits than its factorization.

231301130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23130120.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 231301130 is about 15208.5873768736. The cubic root of 231301130 is about 613.8457474132.

Adding to 231301130 its reverse (31103132), we get a palindrome (262404262).

The spelling of 231301130 in words is "two hundred thirty-one million, three hundred one thousand, one hundred thirty".

Divisors: 1 2 5 10 23130113 46260226 115650565 231301130