Search a number
-
+
311321302230001 = 744474471747143
BaseRepresentation
bin100011011001001010010001…
…1101000010110001111110001
31111211022000200211102200220011
41012302110203220112033301
5311301142011332330001
63022043010513414521
7122401136042601640
oct10662244350261761
91454260624380804
10311321302230001
1190218693a85398
122ab001a226a441
131049361ba6b39b
1456c4062337357
1525ed2ac923d51
hex11b2523a163f1

311321302230001 has 4 divisors (see below), whose sum is σ = 355795773977152. Its totient is φ = 266846830482852.

The previous prime is 311321302229963. The next prime is 311321302230013. The reversal of 311321302230001 is 100032203123113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-311321302230001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311321302230041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22237235873565 + ... + 22237235873578.

It is an arithmetic number, because the mean of its divisors is an integer number (88948943494288).

Almost surely, 2311321302230001 is an apocalyptic number.

It is an amenable number.

311321302230001 is a deficient number, since it is larger than the sum of its proper divisors (44474471747151).

311321302230001 is an equidigital number, since it uses as much as digits as its factorization.

311321302230001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44474471747150.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 311321302230001 its reverse (100032203123113), we get a palindrome (411353505353114).

The spelling of 311321302230001 in words is "three hundred eleven trillion, three hundred twenty-one billion, three hundred two million, two hundred thirty thousand, one".

Divisors: 1 7 44474471747143 311321302230001