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311244001 is a prime number
BaseRepresentation
bin10010100011010…
…011010011100001
3210200122211111121
4102203103103201
51114134302001
650515012241
710466346625
oct2243232341
9720584447
10311244001
1114a764252
128829a081
134c636963
142d49d185
151c4d06a1
hex128d34e1

311244001 has 2 divisors, whose sum is σ = 311244002. Its totient is φ = 311244000.

The previous prime is 311243993. The next prime is 311244023. The reversal of 311244001 is 100442113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187032976 + 124211025 = 13676^2 + 11145^2 .

It is a cyclic number.

It is not a de Polignac number, because 311244001 - 23 = 311243993 is a prime.

It is not a weakly prime, because it can be changed into another prime (311244071) 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, 155622000 + 155622001.

It is an arithmetic number, because the mean of its divisors is an integer number (155622001).

Almost surely, 2311244001 is an apocalyptic number.

It is an amenable number.

311244001 is a deficient number, since it is larger than the sum of its proper divisors (1).

311244001 is an equidigital number, since it uses as much as digits as its factorization.

311244001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 311244001 is about 17642.1087458387. The cubic root of 311244001 is about 677.6940351900.

Adding to 311244001 its reverse (100442113), we get a palindrome (411686114).

The spelling of 311244001 in words is "three hundred eleven million, two hundred forty-four thousand, one".