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211205050212 = 223135869230683
BaseRepresentation
bin1100010010110011001…
…1010100111101100100
3202012011020120012202010
43010230303110331210
511430021443101322
6241005401114220
721154600206612
oct3045463247544
9665136505663
10211205050212
1181631821282
1234b24188970
1316bbb87b6c0
14a3182ca6b2
15576201920c
hex312ccd4f64

211205050212 has 48 divisors (see below), whose sum is σ = 530813111360. Its totient is φ = 64974814848.

The previous prime is 211205050201. The next prime is 211205050241. The reversal of 211205050212 is 212050502112.

211205050212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2112050502123 (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800223 + ... + 1030905.

Almost surely, 2211205050212 is an apocalyptic number.

It is an amenable number.

211205050212 is an abundant number, since it is smaller than the sum of its proper divisors (319608061148).

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

211205050212 is a wasteful number, since it uses less digits than its factorization.

211205050212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236572 (or 236570 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 211205050212 its reverse (212050502112), we get a palindrome (423255552324).

The spelling of 211205050212 in words is "two hundred eleven billion, two hundred five million, fifty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 5869 11738 17607 23476 35214 70428 76297 152594 228891 230683 305188 457782 461366 692049 915564 922732 1384098 2768196 2998879 5997758 8996637 11995516 17993274 35986548 1353878527 2707757054 4061635581 5415514108 8123271162 16246542324 17600420851 35200841702 52801262553 70401683404 105602525106 211205050212