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2146807868 = 221840129167
BaseRepresentation
bin111111111110101…
…1011000000111100
312112121121010202112
41333331123000330
513344040322433
6553005313152
7104125365032
oct17775330074
95477533675
102146807868
11a018a9587
124bab657b8
132829c931a
14165192552
15c8711348
hex7ff5b03c

2146807868 has 12 divisors (see below), whose sum is σ = 3757246752. Its totient is φ = 1073308800.

The previous prime is 2146807837. The next prime is 2146807907. The reversal of 2146807868 is 8687086412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59021 + ... + 88187.

It is an arithmetic number, because the mean of its divisors is an integer number (313103896).

Almost surely, 22146807868 is an apocalyptic number.

It is an amenable number.

2146807868 is a deficient number, since it is larger than the sum of its proper divisors (1610438884).

2146807868 is a wasteful number, since it uses less digits than its factorization.

2146807868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47572 (or 47570 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 50.

The square root of 2146807868 is about 46333.6580468238. The cubic root of 2146807868 is about 1290.0238098283.

The spelling of 2146807868 in words is "two billion, one hundred forty-six million, eight hundred seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 18401 29167 36802 58334 73604 116668 536701967 1073403934 2146807868