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378869099 = 797557981
BaseRepresentation
bin10110100101010…
…001010101101011
3222101220112200212
4112211101111223
51233442302344
6101332251335
712250222430
oct2645212553
9871815625
10378869099
11184952a64
12a6a70b4b
13606534cb
1438463b87
15233dc79e
hex1695156b

378869099 has 8 divisors (see below), whose sum is σ = 437457888. Its totient is φ = 321396480.

The previous prime is 378869077. The next prime is 378869107. The reversal of 378869099 is 990968873.

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 378869099 - 216 = 378803563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (378869399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278312 + ... + 279669.

It is an arithmetic number, because the mean of its divisors is an integer number (54682236).

Almost surely, 2378869099 is an apocalyptic number.

378869099 is a deficient number, since it is larger than the sum of its proper divisors (58588789).

378869099 is an equidigital number, since it uses as much as digits as its factorization.

378869099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558085.

The product of its (nonzero) digits is 5878656, while the sum is 59.

The square root of 378869099 is about 19464.5600772275. The cubic root of 378869099 is about 723.5963959020.

The spelling of 378869099 in words is "three hundred seventy-eight million, eight hundred sixty-nine thousand, ninety-nine".

Divisors: 1 7 97 679 557981 3905867 54124157 378869099