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16080404537 = 31518722727
BaseRepresentation
bin11101111100111011…
…11000000000111001
31112111200010012002102
432332131320000321
5230413040421122
611215350513145
71106326116611
oct167635700071
945450105072
1016080404537
116901a72a2a
1231493657b5
131693628792
14ac7901a41
15641ac9492
hex3be778039

16080404537 has 4 divisors (see below), whose sum is σ = 16599127296. Its totient is φ = 15561681780.

The previous prime is 16080404531. The next prime is 16080404609. The reversal of 16080404537 is 73540408061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73540408061 = 135135442197.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16080404537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16080404537.

It is not an unprimeable number, because it can be changed into a prime (16080404531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259361333 + ... + 259361394.

It is an arithmetic number, because the mean of its divisors is an integer number (4149781824).

Almost surely, 216080404537 is an apocalyptic number.

It is an amenable number.

16080404537 is a deficient number, since it is larger than the sum of its proper divisors (518722759).

16080404537 is an equidigital number, since it uses as much as digits as its factorization.

16080404537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518722758.

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 16080404537 in words is "sixteen billion, eighty million, four hundred four thousand, five hundred thirty-seven".

Divisors: 1 31 518722727 16080404537