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6485495709 = 3711313172857
BaseRepresentation
bin1100000101001000…
…01100111110011101
3121201222121022120210
412002210030332131
5101240241330314
62551314403033
7316500542520
oct60244147635
917658538523
106485495709
112828990a10
12130bb90479
137c4843034
144574aabb7
1527e588559
hex18290cf9d

6485495709 has 64 divisors (see below), whose sum is σ = 11167875072. Its totient is φ = 3248985600.

The previous prime is 6485495693. The next prime is 6485495713. The reversal of 6485495709 is 9075945846.

It is not a de Polignac number, because 6485495709 - 24 = 6485495693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485495719) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2268609 + ... + 2271465.

It is an arithmetic number, because the mean of its divisors is an integer number (174498048).

Almost surely, 26485495709 is an apocalyptic number.

It is an amenable number.

6485495709 is a deficient number, since it is larger than the sum of its proper divisors (4682379363).

6485495709 is a wasteful number, since it uses less digits than its factorization.

6485495709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The square root of 6485495709 is about 80532.5754524217. The cubic root of 6485495709 is about 1864.8664054363.

The spelling of 6485495709 in words is "six billion, four hundred eighty-five million, four hundred ninety-five thousand, seven hundred nine".

Divisors: 1 3 7 11 21 31 33 77 93 217 231 317 341 651 951 1023 2219 2387 2857 3487 6657 7161 8571 9827 10461 19999 24409 29481 31427 59997 68789 73227 88567 94281 108097 206367 219989 265701 324291 619969 659967 756679 905669 974237 1859907 2270037 2717007 2922711 6339683 6819659 9962359 19019049 20458977 28075739 29887077 69736513 84227217 196530173 209209539 308833129 589590519 926499387 2161831903 6485495709