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378640373 = 719754979
BaseRepresentation
bin10110100100011…
…001011111110101
3222101110220221112
4112210121133311
51233412442443
6101323324405
712245250536
oct2644313765
9871426845
10378640373
11184807131
12a6980705
13605a3377
143840468d
1523394b18
hex169197f5

378640373 has 8 divisors (see below), whose sum is σ = 387938880. Its totient is φ = 369452160.

The previous prime is 378640357. The next prime is 378640391. The reversal of 378640373 is 373046873.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 378640373 - 24 = 378640357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378640373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378640343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20603 + ... + 34376.

It is an arithmetic number, because the mean of its divisors is an integer number (48492360).

Almost surely, 2378640373 is an apocalyptic number.

It is an amenable number.

378640373 is a deficient number, since it is larger than the sum of its proper divisors (9298507).

378640373 is an equidigital number, since it uses as much as digits as its factorization.

378640373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55147.

The product of its (nonzero) digits is 254016, while the sum is 41.

The square root of 378640373 is about 19458.6837427407. The cubic root of 378640373 is about 723.4507531401.

The spelling of 378640373 in words is "three hundred seventy-eight million, six hundred forty thousand, three hundred seventy-three".

Divisors: 1 71 97 6887 54979 3903509 5332963 378640373