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130230409 is a prime number
BaseRepresentation
bin1111100001100…
…10100010001001
3100002001101112111
413300302202021
5231314333114
620531142321
73140640331
oct760624211
9302041474
10130230409
116756a041
12377449a1
1320c9961a
14134200c1
15b676bc4
hex7c32889

130230409 has 2 divisors, whose sum is σ = 130230410. Its totient is φ = 130230408.

The previous prime is 130230371. The next prime is 130230431. The reversal of 130230409 is 904032031.

It is an a-pointer prime, because the next prime (130230431) can be obtained adding 130230409 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70090384 + 60140025 = 8372^2 + 7755^2 .

It is a cyclic number.

It is not a de Polignac number, because 130230409 - 27 = 130230281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130230409.

It is not a weakly prime, because it can be changed into another prime (130230469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65115204 + 65115205.

It is an arithmetic number, because the mean of its divisors is an integer number (65115205).

Almost surely, 2130230409 is an apocalyptic number.

It is an amenable number.

130230409 is a deficient number, since it is larger than the sum of its proper divisors (1).

130230409 is an equidigital number, since it uses as much as digits as its factorization.

130230409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 130230409 is about 11411.8538809433. The cubic root of 130230409 is about 506.8788086608.

The spelling of 130230409 in words is "one hundred thirty million, two hundred thirty thousand, four hundred nine".