Search a number
-
+
75009941 is a prime number
BaseRepresentation
bin1000111100010…
…00111110010101
312020010220021222
410132020332111
5123200304231
611235420125
71600400606
oct436107625
9166126258
1075009941
1139383096
1221154645
1312703ca6
149d67dad
1568ba27b
hex4788f95

75009941 has 2 divisors, whose sum is σ = 75009942. Its totient is φ = 75009940.

The previous prime is 75009937. The next prime is 75009943. The reversal of 75009941 is 14990057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72607441 + 2402500 = 8521^2 + 1550^2 .

It is a cyclic number.

It is not a de Polignac number, because 75009941 - 22 = 75009937 is a prime.

Together with 75009943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75009943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37504970 + 37504971.

It is an arithmetic number, because the mean of its divisors is an integer number (37504971).

Almost surely, 275009941 is an apocalyptic number.

It is an amenable number.

75009941 is a deficient number, since it is larger than the sum of its proper divisors (1).

75009941 is an equidigital number, since it uses as much as digits as its factorization.

75009941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 75009941 is about 8660.8279627297. The cubic root of 75009941 is about 421.7349641924.

Adding to 75009941 its reverse (14990057), we get a palindrome (89999998).

The spelling of 75009941 in words is "seventy-five million, nine thousand, nine hundred forty-one".