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130842666 = 23229324809
BaseRepresentation
bin1111100110010…
…00000000101010
3100010012111101200
413303020000222
5231443431131
620552225030
73146100333
oct763100052
9303174350
10130842666
1167948039
123799b176
13211521c6
141353d28a
15b7482e6
hex7cc802a

130842666 has 24 divisors (see below), whose sum is σ = 284471460. Its totient is φ = 43463616.

The previous prime is 130842643. The next prime is 130842667. The reversal of 130842666 is 666248031.

It can be written as a sum of positive squares in 2 ways, for example, as 101909025 + 28933641 = 10095^2 + 5379^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 130842666.

It is not an unprimeable number, because it can be changed into a prime (130842667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7131 + ... + 17678.

Almost surely, 2130842666 is an apocalyptic number.

130842666 is an abundant number, since it is smaller than the sum of its proper divisors (153628794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130842666 is a wasteful number, since it uses less digits than its factorization.

130842666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25110 (or 25107 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 130842666 is about 11438.6479096089. The cubic root of 130842666 is about 507.6719030685.

The spelling of 130842666 in words is "one hundred thirty million, eight hundred forty-two thousand, six hundred sixty-six".

Divisors: 1 2 3 6 9 18 293 586 879 1758 2637 5274 24809 49618 74427 148854 223281 446562 7269037 14538074 21807111 43614222 65421333 130842666