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212103301020 = 223513346178569
BaseRepresentation
bin1100010110001001010…
…1111000011110011100
3202021110211210002012120
43011202111320132130
511433341421113040
6241234445502540
721216055211622
oct3054225703634
9667424702176
10212103301020
1181a52869416
1235134b71a50
13170029b1b60
14a3a170d512
1557b5cec7d0
hex316257879c

212103301020 has 96 divisors (see below), whose sum is σ = 639765967680. Its totient is φ = 52194293760.

The previous prime is 212103300979. The next prime is 212103301121. The reversal of 212103301020 is 20103301212.

212103301020 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 2660296 + ... + 2738864.

It is an arithmetic number, because the mean of its divisors is an integer number (6664228830).

Almost surely, 2212103301020 is an apocalyptic number.

212103301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212103301020 is an abundant number, since it is smaller than the sum of its proper divisors (427662666660).

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

212103301020 is a wasteful number, since it uses less digits than its factorization.

212103301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82055 (or 82053 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 212103301020 its reverse (20103301212), we get a palindrome (232206602232).

The spelling of 212103301020 in words is "two hundred twelve billion, one hundred three million, three hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 3461 6922 10383 13844 17305 20766 34610 41532 44993 51915 69220 78569 89986 103830 134979 157138 179972 207660 224965 235707 269958 314276 392845 449930 471414 539916 674895 785690 899860 942828 1021397 1178535 1349790 1571380 2042794 2357070 2699580 3064191 4085588 4714140 5106985 6128382 10213970 12256764 15320955 20427940 30641910 61283820 271927309 543854618 815781927 1087709236 1359636545 1631563854 2719273090 3263127708 3535055017 4078909635 5438546180 7070110034 8157819270 10605165051 14140220068 16315638540 17675275085 21210330102 35350550170 42420660204 53025825255 70701100340 106051650510 212103301020