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6770385 = 34573229
BaseRepresentation
bin11001110100111011010001
3110201222020000
4121310323101
53213123020
6401040213
7111355506
oct31647321
913658200
106770385
113904766
122326069
13153085b
14c834ad
158db090
hex674ed1

6770385 has 40 divisors (see below), whose sum is σ = 12356520. Its totient is φ = 3545856.

The previous prime is 6770383. The next prime is 6770389. The reversal of 6770385 is 5830776.

It can be written as a sum of positive squares in 4 ways, for example, as 2259009 + 4511376 = 1503^2 + 2124^2 .

It is not a de Polignac number, because 6770385 - 21 = 6770383 is a prime.

It is a super-2 number, since 2×67703852 = 91676226096450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6770383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 29451 + ... + 29679.

It is an arithmetic number, because the mean of its divisors is an integer number (308913).

Almost surely, 26770385 is an apocalyptic number.

It is an amenable number.

6770385 is a deficient number, since it is larger than the sum of its proper divisors (5586135).

6770385 is a wasteful number, since it uses less digits than its factorization.

6770385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 6770385 is about 2601.9963489598. The cubic root of 6770385 is about 189.1782143670.

The spelling of 6770385 in words is "six million, seven hundred seventy thousand, three hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 73 81 135 219 229 365 405 657 687 1095 1145 1971 2061 3285 3435 5913 6183 9855 10305 16717 18549 29565 30915 50151 83585 92745 150453 250755 451359 752265 1354077 2256795 6770385