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378830012 = 22118609773
BaseRepresentation
bin10110100101000…
…111110010111100
3222101211120002012
4112211013302330
51233440030022
6101331350352
712250000451
oct2645076274
9871746065
10378830012
11184926660
12a6a523b8
136063b792
1438453828
15233d0de2
hex16947cbc

378830012 has 12 divisors (see below), whose sum is σ = 723221016. Its totient is φ = 172195440.

The previous prime is 378830003. The next prime is 378830017. The reversal of 378830012 is 210038873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378830017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4304843 + ... + 4304930.

It is an arithmetic number, because the mean of its divisors is an integer number (60268418).

Almost surely, 2378830012 is an apocalyptic number.

It is an amenable number.

378830012 is a deficient number, since it is larger than the sum of its proper divisors (344391004).

378830012 is a wasteful number, since it uses less digits than its factorization.

378830012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8609788 (or 8609786 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 378830012 is about 19463.5559957578. Note that the first 3 decimals coincide. The cubic root of 378830012 is about 723.5715111551.

Adding to 378830012 its reverse (210038873), we get a palindrome (588868885).

The spelling of 378830012 in words is "three hundred seventy-eight million, eight hundred thirty thousand, twelve".

Divisors: 1 2 4 11 22 44 8609773 17219546 34439092 94707503 189415006 378830012