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18130435907 = 67893040489
BaseRepresentation
bin10000111000101010…
…000111111101000011
31201210112121120110012
4100320222013331003
5244112342422112
612155022055135
71211201106503
oct207052077503
951715546405
1018130435907
117764181931
12361ba1a4ab
13192c26c5ac
14c3dca1a03
15711a71022
hex438a87f43

18130435907 has 8 divisors (see below), whose sum is σ = 18607798800. Its totient is φ = 17659154304.

The previous prime is 18130435871. The next prime is 18130435909. The reversal of 18130435907 is 70953403181.

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 18130435907 - 214 = 18130419523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18130435909) 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, 1514282 + ... + 1526207.

It is an arithmetic number, because the mean of its divisors is an integer number (2325974850).

Almost surely, 218130435907 is an apocalyptic number.

18130435907 is a deficient number, since it is larger than the sum of its proper divisors (477362893).

18130435907 is an equidigital number, since it uses as much as digits as its factorization.

18130435907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3040645.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 18130435907 in words is "eighteen billion, one hundred thirty million, four hundred thirty-five thousand, nine hundred seven".

Divisors: 1 67 89 5963 3040489 203712763 270603521 18130435907