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311420403244 = 22212936568859
BaseRepresentation
bin1001000100000100001…
…10100011111000101100
31002202211102102121211001
410202002012203320230
520100242110400434
6355021540010044
731333200515536
oct4420206437054
91082742377731
10311420403244
11110088776295
1250432090924
132349cb8c672
1411103ba8856
15817a0e2114
hex48821a3e2c

311420403244 has 12 divisors (see below), whose sum is σ = 545241702600. Its totient is φ = 155637059648.

The previous prime is 311420403227. The next prime is 311420403251. The reversal of 311420403244 is 442304024113.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18275914 + ... + 18292945.

It is an arithmetic number, because the mean of its divisors is an integer number (45436808550).

Almost surely, 2311420403244 is an apocalyptic number.

It is an amenable number.

311420403244 is a deficient number, since it is larger than the sum of its proper divisors (233821299356).

311420403244 is a wasteful number, since it uses less digits than its factorization.

311420403244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36570992 (or 36570990 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 311420403244 its reverse (442304024113), we get a palindrome (753724427357).

The spelling of 311420403244 in words is "three hundred eleven billion, four hundred twenty million, four hundred three thousand, two hundred forty-four".

Divisors: 1 2 4 2129 4258 8516 36568859 73137718 146275436 77855100811 155710201622 311420403244