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312311030030 = 25432791260231
BaseRepresentation
bin1001000101101110011…
…00000010000100001110
31002212010111022011002022
410202313030002010032
520104103110430110
6355250153130142
731364233645226
oct4426714020416
91085114264068
10312311030030
111104a548638a
12506403b9952
13235b255386c
141118a1a5086
1581cd3bb755
hex48b730210e

312311030030 has 32 divisors (see below), whose sum is σ = 575441653248. Its totient is φ = 121975005600.

The previous prime is 312311030023. The next prime is 312311030203. The reversal of 312311030030 is 30030113213.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 312311029990 and 312311030008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1070015 + ... + 1330245.

It is an arithmetic number, because the mean of its divisors is an integer number (17982551664).

Almost surely, 2312311030030 is an apocalyptic number.

312311030030 is a deficient number, since it is larger than the sum of its proper divisors (263130623218).

312311030030 is a wasteful number, since it uses less digits than its factorization.

312311030030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263072.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 312311030030 its reverse (30030113213), we get a palindrome (342341143243).

The spelling of 312311030030 in words is "three hundred twelve billion, three hundred eleven million, thirty thousand, thirty".

Divisors: 1 2 5 10 43 86 215 430 2791 5582 13955 27910 120013 240026 260231 520462 600065 1200130 1301155 2602310 11189933 22379866 55949665 111899330 726304721 1452609442 3631523605 7263047210 31231103003 62462206006 156155515015 312311030030