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6875140 = 2251773277
BaseRepresentation
bin11010001110100000000100
3110221021220211
4122032200010
53230001030
6403205204
7112303066
oct32164004
913837824
106875140
113976438
122376804
13156943c
14cad736
1590c12a
hex68e804

6875140 has 48 divisors (see below), whose sum is σ = 15552432. Its totient is φ = 2543616.

The previous prime is 6875129. The next prime is 6875153. The reversal of 6875140 is 415786.

It can be written as a sum of positive squares in 8 ways, for example, as 31684 + 6843456 = 178^2 + 2616^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24682 + ... + 24958.

It is an arithmetic number, because the mean of its divisors is an integer number (324009).

Almost surely, 26875140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6875140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7776216).

6875140 is an abundant number, since it is smaller than the sum of its proper divisors (8677292).

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

6875140 is a wasteful number, since it uses less digits than its factorization.

6875140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 6875140 is about 2622.0488172420. The cubic root of 6875140 is about 190.1489137283.

The spelling of 6875140 in words is "six million, eight hundred seventy-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 73 85 146 170 277 292 340 365 554 730 1108 1241 1385 1460 2482 2770 4709 4964 5540 6205 9418 12410 18836 20221 23545 24820 40442 47090 80884 94180 101105 202210 343757 404420 687514 1375028 1718785 3437570 6875140