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130220191 is a prime number
BaseRepresentation
bin1111100001100…
…00000010011111
3100002000212112001
413300300002133
5231314021231
620531023131
73140565463
oct760600237
9302025461
10130220191
11675623a2
123773aaa7
1320c94a8a
141341a4a3
15b673b61
hex7c3009f

130220191 has 2 divisors, whose sum is σ = 130220192. Its totient is φ = 130220190.

The previous prime is 130220143. The next prime is 130220213. The reversal of 130220191 is 191022031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130220191 - 29 = 130219679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130220291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65110095 + 65110096.

It is an arithmetic number, because the mean of its divisors is an integer number (65110096).

Almost surely, 2130220191 is an apocalyptic number.

130220191 is a deficient number, since it is larger than the sum of its proper divisors (1).

130220191 is an equidigital number, since it uses as much as digits as its factorization.

130220191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 130220191 is about 11411.4061797835. The cubic root of 130220191 is about 506.8655515852.

The spelling of 130220191 in words is "one hundred thirty million, two hundred twenty thousand, one hundred ninety-one".