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6845980 = 225342299
BaseRepresentation
bin11010000111011000011100
3110212210220211
4122013120130
53223032410
6402422204
7112122061
oct32073034
913783824
106845980
113956539
122361964
13155909b
14ca2c68
1590368a
hex68761c

6845980 has 12 divisors (see below), whose sum is σ = 14376600. Its totient is φ = 2738384.

The previous prime is 6845959. The next prime is 6845981. The reversal of 6845980 is 895486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6845981) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 171130 + ... + 171169.

It is an arithmetic number, because the mean of its divisors is an integer number (1198050).

Almost surely, 26845980 is an apocalyptic number.

It is an amenable number.

6845980 is an abundant number, since it is smaller than the sum of its proper divisors (7530620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6845980 is a wasteful number, since it uses less digits than its factorization.

6845980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342308 (or 342306 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6845980 is about 2616.4823714292. The cubic root of 6845980 is about 189.8797022434.

It can be divided in two parts, 6845 and 980, that multiplied together give a square (6708100 = 25902).

The spelling of 6845980 in words is "six million, eight hundred forty-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 342299 684598 1369196 1711495 3422990 6845980