Search a number
-
+
30964841 is a prime number
BaseRepresentation
bin111011000011…
…1110001101001
32011021011202222
41312013301221
530411333331
63023403425
7524124335
oct166076151
964234688
1030964841
111652a386
12a453575
1365521bb
1441807c5
152ab9b7b
hex1d87c69

30964841 has 2 divisors, whose sum is σ = 30964842. Its totient is φ = 30964840.

The previous prime is 30964823. The next prime is 30964847. The reversal of 30964841 is 14846903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 1371241 = 5440^2 + 1171^2 .

It is an emirp because it is prime and its reverse (14846903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30964841 - 222 = 26770537 is a prime.

It is not a weakly prime, because it can be changed into another prime (30964847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15482420 + 15482421.

It is an arithmetic number, because the mean of its divisors is an integer number (15482421).

Almost surely, 230964841 is an apocalyptic number.

It is an amenable number.

30964841 is a deficient number, since it is larger than the sum of its proper divisors (1).

30964841 is an equidigital number, since it uses as much as digits as its factorization.

30964841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 30964841 is about 5564.6060956729. The cubic root of 30964841 is about 314.0192592350.

The spelling of 30964841 in words is "thirty million, nine hundred sixty-four thousand, eight hundred forty-one".