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130806859 is a prime number
BaseRepresentation
bin1111100101111…
…11010001001011
3100010010200021111
413302333101023
5231441304414
620551351151
73145561051
oct762772113
9303120244
10130806859
1167923147
12379824b7
132113bb11
14135301d1
15b73c8c4
hex7cbf44b

130806859 has 2 divisors, whose sum is σ = 130806860. Its totient is φ = 130806858.

The previous prime is 130806853. The next prime is 130806869. The reversal of 130806859 is 958608031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130806859 - 213 = 130798667 is a prime.

It is a super-3 number, since 3×1308068593 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (130806853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65403429 + 65403430.

It is an arithmetic number, because the mean of its divisors is an integer number (65403430).

Almost surely, 2130806859 is an apocalyptic number.

130806859 is a deficient number, since it is larger than the sum of its proper divisors (1).

130806859 is an equidigital number, since it uses as much as digits as its factorization.

130806859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 130806859 is about 11437.0826262644. The cubic root of 130806859 is about 507.6255882414.

The spelling of 130806859 in words is "one hundred thirty million, eight hundred six thousand, eight hundred fifty-nine".