Search a number
-
+
3050381 is a prime number
BaseRepresentation
bin1011101000101110001101
312201222100002
423220232031
51240103011
6145214045
734633145
oct13505615
95658302
103050381
1117a3884
121031325
1382a579
14595925
15403c3b
hex2e8b8d

3050381 has 2 divisors, whose sum is σ = 3050382. Its totient is φ = 3050380.

The previous prime is 3050371. The next prime is 3050389. The reversal of 3050381 is 1830503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2353156 + 697225 = 1534^2 + 835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3050381 is a prime.

It is a super-2 number, since 2×30503812 = 18609648490322, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3050389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1525190 + 1525191.

It is an arithmetic number, because the mean of its divisors is an integer number (1525191).

Almost surely, 23050381 is an apocalyptic number.

It is an amenable number.

3050381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3050381 is an equidigital number, since it uses as much as digits as its factorization.

3050381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 3050381 is about 1746.5339962337. The cubic root of 3050381 is about 145.0278345296.

Adding to 3050381 its reverse (1830503), we get a palindrome (4880884).

It can be divided in two parts, 3050 and 381, that multiplied together give a triangular number (1162050 = T1524).

The spelling of 3050381 in words is "three million, fifty thousand, three hundred eighty-one".