Search a number
-
+
3894285943 is a prime number
BaseRepresentation
bin1110100000011110…
…0001011001110111
3101001101210020000201
43220013201121313
530433414122233
61442232021331
7165334612222
oct35007413167
911041706021
103894285943
11171924a739
12908231847
134a0a5a112
1428d2b65b9
1517bd4277d
hexe81e1677

3894285943 has 2 divisors, whose sum is σ = 3894285944. Its totient is φ = 3894285942.

The previous prime is 3894285919. The next prime is 3894285947. The reversal of 3894285943 is 3495824983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3894285943 - 25 = 3894285911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3894285947) 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, 1947142971 + 1947142972.

It is an arithmetic number, because the mean of its divisors is an integer number (1947142972).

Almost surely, 23894285943 is an apocalyptic number.

3894285943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3894285943 is an equidigital number, since it uses as much as digits as its factorization.

3894285943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 55.

The square root of 3894285943 is about 62404.2141445592. The cubic root of 3894285943 is about 1573.2917995366.

The spelling of 3894285943 in words is "three billion, eight hundred ninety-four million, two hundred eighty-five thousand, nine hundred forty-three".