Search a number
-
+
75076817 is a prime number
BaseRepresentation
bin1000111100110…
…01010011010001
312020021022000212
410132121103101
5123204424232
611241053505
71601066564
oct436312321
9166238025
1075076817
1139419362
1221187295
131272856a
149d844db
1568ceeb2
hex47994d1

75076817 has 2 divisors, whose sum is σ = 75076818. Its totient is φ = 75076816.

The previous prime is 75076789. The next prime is 75076829. The reversal of 75076817 is 71867057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72063121 + 3013696 = 8489^2 + 1736^2 .

It is an emirp because it is prime and its reverse (71867057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75076817 - 216 = 75011281 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75076867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37538408 + 37538409.

It is an arithmetic number, because the mean of its divisors is an integer number (37538409).

Almost surely, 275076817 is an apocalyptic number.

It is an amenable number.

75076817 is a deficient number, since it is larger than the sum of its proper divisors (1).

75076817 is an equidigital number, since it uses as much as digits as its factorization.

75076817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 41.

The square root of 75076817 is about 8664.6879343690. The cubic root of 75076817 is about 421.8602612281.

The spelling of 75076817 in words is "seventy-five million, seventy-six thousand, eight hundred seventeen".