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212031023310030 = 23549311433319971
BaseRepresentation
bin110000001101011101010001…
…110100110110010011001110
31000210201222010120112121012110
4300031131101310312103032
5210242404013431410110
62030541412444444450
762442510263163201
oct6015352164662316
91023658116477173
10212031023310030
1161617941026151
121b945048849726
139140594052942
143a504db905938
15197a630871a20
hexc0d751d364ce

212031023310030 has 32 divisors (see below), whose sum is σ = 508977655337088. Its totient is φ = 56530139616800.

The previous prime is 212031023310017. The next prime is 212031023310037. The reversal of 212031023310030 is 30013320130212.

212031023310030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212031023309979 and 212031023310006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031023310037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716512056 + ... + 716807915.

It is an arithmetic number, because the mean of its divisors is an integer number (15905551729284).

Almost surely, 2212031023310030 is an apocalyptic number.

212031023310030 is an abundant number, since it is smaller than the sum of its proper divisors (296946632027058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212031023310030 is a wasteful number, since it uses less digits than its factorization.

212031023310030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433324912.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212031023310030 its reverse (30013320130212), we get a palindrome (242044343440242).

The spelling of 212031023310030 in words is "two hundred twelve trillion, thirty-one billion, twenty-three million, three hundred ten thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 4931 9862 14793 24655 29586 49310 73965 147930 1433319971 2866639942 4299959913 7166599855 8599919826 14333199710 21499799565 42999599130 7067700777001 14135401554002 21203102331003 35338503885005 42406204662006 70677007770010 106015511655015 212031023310030