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212000203100 = 225271731750621
BaseRepresentation
bin1100010101110000110…
…0100110000101011100
3202021012122210011110002
43011130030212011130
511433134022444400
6241220324033432
721213363664610
oct3053414460534
9667178704402
10212000203100
11819aa651424
1235106532878
1316cb752527a
14a391b53340
1557abc34ed5
hex315c32615c

212000203100 has 72 divisors (see below), whose sum is σ = 528799883808. Its totient is φ = 72265593600.

The previous prime is 212000203067. The next prime is 212000203117. The reversal of 212000203100 is 1302000212.

It is a happy number.

212000203100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2120002031002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 754211 + ... + 996410.

Almost surely, 2212000203100 is an apocalyptic number.

212000203100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212000203100 is an abundant number, since it is smaller than the sum of its proper divisors (316799680708).

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

212000203100 is a wasteful number, since it uses less digits than its factorization.

212000203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750815 (or 1750808 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 212000203100 its reverse (1302000212), we get a palindrome (213302203312).

The spelling of 212000203100 in words is "two hundred twelve billion, two hundred three thousand, one hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 173 175 346 350 692 700 865 1211 1730 2422 3460 4325 4844 6055 8650 12110 17300 24220 30275 60550 121100 1750621 3501242 7002484 8753105 12254347 17506210 24508694 35012420 43765525 49017388 61271735 87531050 122543470 175062100 245086940 302857433 306358675 605714866 612717350 1211429732 1225434700 1514287165 2120002031 3028574330 4240004062 6057148660 7571435825 8480008124 10600010155 15142871650 21200020310 30285743300 42400040620 53000050775 106000101550 212000203100