Search a number
-
+
80250997 is a prime number
BaseRepresentation
bin1001100100010…
…00100001110101
312121000011200011
410302020201311
5131021012442
611544020221
71663056631
oct462104165
9177004604
1080250997
1141332842
1222a61671
131381a6c8
14a92ddc1
1570a3117
hex4c88875

80250997 has 2 divisors, whose sum is σ = 80250998. Its totient is φ = 80250996.

The previous prime is 80250991. The next prime is 80251013. The reversal of 80250997 is 79905208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54302161 + 25948836 = 7369^2 + 5094^2 .

It is a cyclic number.

It is not a de Polignac number, because 80250997 - 27 = 80250869 is a prime.

It is a super-3 number, since 3×802509973 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80250991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40125498 + 40125499.

It is an arithmetic number, because the mean of its divisors is an integer number (40125499).

Almost surely, 280250997 is an apocalyptic number.

It is an amenable number.

80250997 is a deficient number, since it is larger than the sum of its proper divisors (1).

80250997 is an equidigital number, since it uses as much as digits as its factorization.

80250997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 80250997 is about 8958.2920805252. The cubic root of 80250997 is about 431.3370980839.

The spelling of 80250997 in words is "eighty million, two hundred fifty thousand, nine hundred ninety-seven".