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130242231 = 3272067337
BaseRepresentation
bin1111100001101…
…01011010110111
3100002001222202100
413300311122313
5231320222411
620531313143
73141016650
oct760653267
9302058670
10130242231
1167577a09
123774b7b3
1320ca1b12
1413424527
15b67a456
hex7c356b7

130242231 has 12 divisors (see below), whose sum is σ = 215003152. Its totient is φ = 74424096.

The previous prime is 130242223. The next prime is 130242239. The reversal of 130242231 is 132242031.

It is an interprime number because it is at equal distance from previous prime (130242223) and next prime (130242239).

It is not a de Polignac number, because 130242231 - 23 = 130242223 is a prime.

It is a super-2 number, since 2×1302422312 = 33926077471714722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130242239) 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 11 ways as a sum of consecutive naturals, for example, 1033606 + ... + 1033731.

Almost surely, 2130242231 is an apocalyptic number.

130242231 is a deficient number, since it is larger than the sum of its proper divisors (84760921).

130242231 is a wasteful number, since it uses less digits than its factorization.

130242231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067350 (or 2067347 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130242231 is about 11412.3718393680. The cubic root of 130242231 is about 506.8941459388.

Adding to 130242231 its reverse (132242031), we get a palindrome (262484262).

The spelling of 130242231 in words is "one hundred thirty million, two hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 3 7 9 21 63 2067337 6202011 14471359 18606033 43414077 130242231