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130231519 = 11107110647
BaseRepresentation
bin1111100001100…
…10110011011111
3100002001110001121
413300302303133
5231314402034
620531151411
73140643505
oct760626337
9302043047
10130231519
116756a960
1237745567
1320c99c92
1413420675
15b6771b4
hex7c32cdf

130231519 has 8 divisors (see below), whose sum is σ = 143399808. Its totient is φ = 117284760.

The previous prime is 130231499. The next prime is 130231531. The reversal of 130231519 is 915132031.

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

It is a cyclic number.

It is not a de Polignac number, because 130231519 - 25 = 130231487 is a prime.

It is a super-2 number, since 2×1302315192 = 33920497082094722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130231493 and 130231502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130231559) 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 in 7 ways as a sum of consecutive naturals, for example, 54147 + ... + 56500.

It is an arithmetic number, because the mean of its divisors is an integer number (17924976).

Almost surely, 2130231519 is an apocalyptic number.

130231519 is a deficient number, since it is larger than the sum of its proper divisors (13168289).

130231519 is a wasteful number, since it uses less digits than its factorization.

130231519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110765.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 130231519 is about 11411.9025144802. The cubic root of 130231519 is about 506.8802487594.

The spelling of 130231519 in words is "one hundred thirty million, two hundred thirty-one thousand, five hundred nineteen".

Divisors: 1 11 107 1177 110647 1217117 11839229 130231519