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6849140 = 2253111047
BaseRepresentation
bin11010001000001001110100
3110212222020212
4122020021310
53223133030
6402444552
7112134224
oct32101164
913788225
106849140
113958951
122363758
13155a65c
14ca4084
15904595
hex688274

6849140 has 24 divisors (see below), whose sum is σ = 14848512. Its totient is φ = 2651040.

The previous prime is 6849131. The next prime is 6849151. The reversal of 6849140 is 419486.

It is a junction number, because it is equal to n+sod(n) for n = 6849097 and 6849106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4904 + ... + 6143.

It is an arithmetic number, because the mean of its divisors is an integer number (618688).

Almost surely, 26849140 is an apocalyptic number.

It is an amenable number.

6849140 is an abundant number, since it is smaller than the sum of its proper divisors (7999372).

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

6849140 is a wasteful number, since it uses less digits than its factorization.

6849140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11087 (or 11085 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 6849140 is about 2617.0861659487. The cubic root of 6849140 is about 189.9089129414.

The spelling of 6849140 in words is "six million, eight hundred forty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 11047 22094 44188 55235 110470 220940 342457 684914 1369828 1712285 3424570 6849140