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380603813 is a prime number
BaseRepresentation
bin10110101011111…
…000110110100101
3222112011200021112
4112223320312211
51234413310223
6101433354405
712301036052
oct2653706645
9875150245
10380603813
11185928307
12a7568a05
1360b0cc75
1438796029
1523631778
hex16af8da5

380603813 has 2 divisors, whose sum is σ = 380603814. Its totient is φ = 380603812.

The previous prime is 380603789. The next prime is 380603843. The reversal of 380603813 is 318306083.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342139009 + 38464804 = 18497^2 + 6202^2 .

It is a cyclic number.

It is not a de Polignac number, because 380603813 - 214 = 380587429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 380603813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380603843) 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 as a sum of consecutive naturals, namely, 190301906 + 190301907.

It is an arithmetic number, because the mean of its divisors is an integer number (190301907).

Almost surely, 2380603813 is an apocalyptic number.

It is an amenable number.

380603813 is a deficient number, since it is larger than the sum of its proper divisors (1).

380603813 is an equidigital number, since it uses as much as digits as its factorization.

380603813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 380603813 is about 19509.0700188400. The cubic root of 380603813 is about 724.6990827291.

Adding to 380603813 its reverse (318306083), we get a palindrome (698909896).

The spelling of 380603813 in words is "three hundred eighty million, six hundred three thousand, eight hundred thirteen".