### Properties of the number 378349:

378349 is a cyclic number.378349 = 67 × 5647 is semiprime and squarefree.

378349 has 2 distinct prime factors, 4 divisors, 11 antidivisors and 372636 totatives.

378349 has a semiprime digit sum 34 in base 10.

378349 has a Fibonacci digit sum 34 in base 10.

Reversing the decimal digits of 378349 results in an emirpimes.

378349 = (71 × 72)/2 + … + (137 × 138)/2 is the sum of at least 2 consecutive triangular numbers in 1 way.

378349 = 189175

^{2}- 189174

^{2}= 2857

^{2}- 2790

^{2}is the difference of 2 nonnegative squares in 2 ways.

378349 is the sum of 2 positive triangular numbers.

378349 is the difference of 2 positive pentagonal numbers in 2 ways.

378349 = 72

^{2}+ 77

^{2}+ 606

^{2}is the sum of 3 positive squares.

378349

^{2}is the sum of 3 positive squares.

378349 is a proper divisor of 853

^{33}- 1.

378349 = '37834' + '9' is the concatenation of 2 semiprime numbers.

378349 is an emirpimes in (at least) the following bases: 2, 10, 11, 12, 16, 18, 26, 27, 28, 32, 34, 42, 43, 45, 46, 47, 51, 55, 58, 60, 62, 63, 64, 65, 67, 69, 70, 71, 73, 75, 83, 91, 93, 94, 96, 97, and 100.

378349 is palindromic in (at least) base -92.

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