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6493105 = 531163257
BaseRepresentation
bin11000110001001110110001
3110012212212101
4120301032301
53130234410
6351100401
7106122223
oct30611661
913185771
106493105
113735403
122211701
131464598
14c10413
15883d3a
hex6313b1

6493105 has 16 divisors (see below), whose sum is σ = 8123904. Its totient is φ = 4976640.

The previous prime is 6493087. The next prime is 6493139. The reversal of 6493105 is 5013946.

It is not a de Polignac number, because 6493105 - 25 = 6493073 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25137 + ... + 25393.

It is an arithmetic number, because the mean of its divisors is an integer number (507744).

Almost surely, 26493105 is an apocalyptic number.

It is an amenable number.

6493105 is a deficient number, since it is larger than the sum of its proper divisors (1630799).

6493105 is a wasteful number, since it uses less digits than its factorization.

6493105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 6493105 is about 2548.1571772558. The cubic root of 6493105 is about 186.5595456110.

The spelling of 6493105 in words is "six million, four hundred ninety-three thousand, one hundred five".

Divisors: 1 5 31 155 163 257 815 1285 5053 7967 25265 39835 41891 209455 1298621 6493105