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130231847 is a prime number
BaseRepresentation
bin1111100001100…
…10111000100111
3100002001110111202
413300302320213
5231314404342
620531153115
73140644454
oct760627047
9302043452
10130231847
1167570129
123774579b
1320c9a185
141342082b
15b677332
hex7c32e27

130231847 has 2 divisors, whose sum is σ = 130231848. Its totient is φ = 130231846.

The previous prime is 130231841. The next prime is 130231859. The reversal of 130231847 is 748132031.

It is a weak prime.

It is an emirp because it is prime and its reverse (748132031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130231847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130231841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65115923 + 65115924.

It is an arithmetic number, because the mean of its divisors is an integer number (65115924).

Almost surely, 2130231847 is an apocalyptic number.

130231847 is a deficient number, since it is larger than the sum of its proper divisors (1).

130231847 is an equidigital number, since it uses as much as digits as its factorization.

130231847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 130231847 is about 11411.9168854316. The cubic root of 130231847 is about 506.8806743004.

Adding to 130231847 its reverse (748132031), we get a palindrome (878363878).

The spelling of 130231847 in words is "one hundred thirty million, two hundred thirty-one thousand, eight hundred forty-seven".