Search a number
-
+
64808371 is a prime number
BaseRepresentation
bin1111011100111…
…0010110110011
311111221121101001
43313032112303
5113042331441
610233022431
71414601455
oct367162663
9144847331
1064808371
1133645541
1219854a17
1310571764
1488702d5
155a52731
hex3dce5b3

64808371 has 2 divisors, whose sum is σ = 64808372. Its totient is φ = 64808370.

The previous prime is 64808351. The next prime is 64808389. The reversal of 64808371 is 17380846.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64808371 - 25 = 64808339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64808371.

It is not a weakly prime, because it can be changed into another prime (64808351) 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, 32404185 + 32404186.

It is an arithmetic number, because the mean of its divisors is an integer number (32404186).

Almost surely, 264808371 is an apocalyptic number.

64808371 is a deficient number, since it is larger than the sum of its proper divisors (1).

64808371 is an equidigital number, since it uses as much as digits as its factorization.

64808371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 64808371 is about 8050.3646501261. The cubic root of 64808371 is about 401.6770650553.

The spelling of 64808371 in words is "sixty-four million, eight hundred eight thousand, three hundred seventy-one".