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130250665 = 538536761
BaseRepresentation
bin1111100001101…
…11011110101001
3100002002102022201
413300313132221
5231321010130
620531420201
73141053356
oct760673651
9302072281
10130250665
1167583286
1237754661
1320ca58cc
141342762d
15b67cbca
hex7c377a9

130250665 has 8 divisors (see below), whose sum is σ = 156364488. Its totient is φ = 104158080.

The previous prime is 130250657. The next prime is 130250683. The reversal of 130250665 is 566052031.

It can be written as a sum of positive squares in 4 ways, for example, as 70358544 + 59892121 = 8388^2 + 7739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130250665 - 23 = 130250657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 15885 + ... + 22645.

It is an arithmetic number, because the mean of its divisors is an integer number (19545561).

Almost surely, 2130250665 is an apocalyptic number.

It is an amenable number.

130250665 is a deficient number, since it is larger than the sum of its proper divisors (26113823).

130250665 is an equidigital number, since it uses as much as digits as its factorization.

130250665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10619.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 130250665 is about 11412.7413446551. The cubic root of 130250665 is about 506.9050872259.

The spelling of 130250665 in words is "one hundred thirty million, two hundred fifty thousand, six hundred sixty-five".

Divisors: 1 5 3853 6761 19265 33805 26050133 130250665