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130550261 is a prime number
BaseRepresentation
bin1111100100000…
…00100111110101
3100002122122021212
413302000213311
5231410102021
620542051205
73143442002
oct762004765
9302578255
10130550261
1167768386
1237879b05
132107c09a
14134a48a9
15b6db85b
hex7c809f5

130550261 has 2 divisors, whose sum is σ = 130550262. Its totient is φ = 130550260.

The previous prime is 130550243. The next prime is 130550267. The reversal of 130550261 is 162055031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108035236 + 22515025 = 10394^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 130550261 - 214 = 130533877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130550267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65275130 + 65275131.

It is an arithmetic number, because the mean of its divisors is an integer number (65275131).

Almost surely, 2130550261 is an apocalyptic number.

It is an amenable number.

130550261 is a deficient number, since it is larger than the sum of its proper divisors (1).

130550261 is an equidigital number, since it uses as much as digits as its factorization.

130550261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 130550261 is about 11425.8593112291. The cubic root of 130550261 is about 507.2934421116.

The spelling of 130550261 in words is "one hundred thirty million, five hundred fifty thousand, two hundred sixty-one".