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130042231 = 11175313121
BaseRepresentation
bin1111100000001…
…00100101110111
3100001200211101221
413300010211313
5231242322411
620523131211
73136224604
oct760044567
9301624357
10130042231
1167450720
1237673b07
1320c31a87
14133b16ab
15b63b071
hex7c04977

130042231 has 16 divisors (see below), whose sum is σ = 153055008. Its totient is φ = 109158400.

The previous prime is 130042169. The next prime is 130042267. The reversal of 130042231 is 132240031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 130042231 - 27 = 130042103 is a prime.

It is a super-2 number, since 2×1300422312 = 33821963686914722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130042271) 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, 3351 + ... + 16471.

It is an arithmetic number, because the mean of its divisors is an integer number (9565938).

Almost surely, 2130042231 is an apocalyptic number.

130042231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130042231 is a deficient number, since it is larger than the sum of its proper divisors (23012777).

130042231 is a wasteful number, since it uses less digits than its factorization.

130042231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13202.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130042231 is about 11403.6060524731. The cubic root of 130042231 is about 506.6345507594.

Adding to 130042231 its reverse (132240031), we get a palindrome (262282262).

The spelling of 130042231 in words is "one hundred thirty million, forty-two thousand, two hundred thirty-one".

Divisors: 1 11 17 53 187 583 901 9911 13121 144331 223057 695413 2453627 7649543 11822021 130042231