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380035813 is a prime number
BaseRepresentation
bin10110101001101…
…110001011100101
3222111002211010111
4112221232023211
51234242121223
6101413253021
712263152063
oct2651561345
9874084114
10380035813
1118557a593
12a7334171
1360971581
1438689033
152356d30d
hex16a6e2e5

380035813 has 2 divisors, whose sum is σ = 380035814. Its totient is φ = 380035812.

The previous prime is 380035801. The next prime is 380035819. The reversal of 380035813 is 318530083.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281669089 + 98366724 = 16783^2 + 9918^2 .

It is a cyclic number.

It is not a de Polignac number, because 380035813 - 29 = 380035301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380035819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190017906 + 190017907.

It is an arithmetic number, because the mean of its divisors is an integer number (190017907).

Almost surely, 2380035813 is an apocalyptic number.

It is an amenable number.

380035813 is a deficient number, since it is larger than the sum of its proper divisors (1).

380035813 is an equidigital number, since it uses as much as digits as its factorization.

380035813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 380035813 is about 19494.5072520441. The cubic root of 380035813 is about 724.3383979418.

Adding to 380035813 its reverse (318530083), we get a palindrome (698565896).

The spelling of 380035813 in words is "three hundred eighty million, thirty-five thousand, eight hundred thirteen".