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212020031200 = 2552436163373
BaseRepresentation
bin1100010101110101100…
…0001110111011100000
3202021021001002112111011
43011131120032323200
511433204111444300
6241222313030304
721214024346515
oct3053530167340
9667231075434
10212020031200
1181a0a86458a
12351110b5394
1316cbb678383
14a39463530c
1557ad84eeba
hex315d60eee0

212020031200 has 72 divisors (see below), whose sum is σ = 529631054568. Its totient is φ = 82835719680.

The previous prime is 212020031189. The next prime is 212020031203. The reversal of 212020031200 is 2130020212.

212020031200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020031203) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3047287 + ... + 3116086.

It is an arithmetic number, because the mean of its divisors is an integer number (7355986869).

Almost surely, 2212020031200 is an apocalyptic number.

212020031200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020031200 is an abundant number, since it is smaller than the sum of its proper divisors (317611023368).

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

212020031200 is a wasteful number, since it uses less digits than its factorization.

212020031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163436 (or 6163423 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 212020031200 its reverse (2130020212), we get a palindrome (214150051412).

The spelling of 212020031200 in words is "two hundred twelve billion, twenty million, thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 43 50 80 86 100 160 172 200 215 344 400 430 688 800 860 1075 1376 1720 2150 3440 4300 6880 8600 17200 34400 6163373 12326746 24653492 30816865 49306984 61633730 98613968 123267460 154084325 197227936 246534920 265025039 308168650 493069840 530050078 616337300 986139680 1060100156 1232674600 1325125195 2120200312 2465349200 2650250390 4240400624 4930698400 5300500780 6625625975 8480801248 10601001560 13251251950 21202003120 26502503900 42404006240 53005007800 106010015600 212020031200