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212020303200 = 25352255734549
BaseRepresentation
bin1100010101110101100…
…1010001010101100000
3202021021001121100121020
43011131121101111200
511433204144200300
6241222322525440
721214026561516
oct3053531212540
9667231540536
10212020303200
1181a0aa2a982
1235111206880
1316cbb742114
14a3946a64b6
1557ad8a58a0
hex315d651560

212020303200 has 144 divisors (see below), whose sum is σ = 690415966800. Its totient is φ = 56515000320.

The previous prime is 212020303181. The next prime is 212020303211. The reversal of 212020303200 is 2303020212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212020303200.

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, 6119526 + ... + 6154074.

It is an arithmetic number, because the mean of its divisors is an integer number (4794555325).

Almost surely, 2212020303200 is an apocalyptic number.

212020303200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212020303200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345207983400).

212020303200 is an abundant number, since it is smaller than the sum of its proper divisors (478395663600).

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

212020303200 is a wasteful number, since it uses less digits than its factorization.

212020303200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37129 (or 37116 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 212020303200 its reverse (2303020212), we get a palindrome (214323323412).

The spelling of 212020303200 in words is "two hundred twelve billion, twenty million, three hundred three thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 200 240 300 400 480 600 800 1200 2400 2557 5114 7671 10228 12785 15342 20456 25570 30684 34549 38355 40912 51140 61368 63925 69098 76710 81824 102280 103647 122736 127850 138196 153420 172745 191775 204560 207294 245472 255700 276392 306840 345490 383550 409120 414588 511400 518235 552784 613680 690980 767100 829176 863725 1022800 1036470 1105568 1227360 1381960 1534200 1658352 1727450 2045600 2072940 2591175 2763920 3068400 3316704 3454900 4145880 5182350 5527840 6136800 6909800 8291760 10364700 13819600 16583520 20729400 27639200 41458800 82917600 88341793 176683586 265025379 353367172 441708965 530050758 706734344 883417930 1060101516 1325126895 1413468688 1766835860 2120203032 2208544825 2650253790 2826937376 3533671720 4240406064 4417089650 5300507580 6625634475 7067343440 8480812128 8834179300 10601015160 13251268950 14134686880 17668358600 21202030320 26502537900 35336717200 42404060640 53005075800 70673434400 106010151600 212020303200