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213552200000 = 26551067761
BaseRepresentation
bin1100011011100010110…
…0111111100101000000
3202102012211010202221202
43012320230333211000
511444323330400000
6242034324440332
721300010515116
oct3067054774500
9672184122852
10213552200000
1182626716697
123547a2490a8
13171a3c21829
14a49bd0dab6
15584d100dd5
hex31b8b3f940

213552200000 has 84 divisors (see below), whose sum is σ = 529676153244. Its totient is φ = 85420800000.

The previous prime is 213552199979. The next prime is 213552200009. The reversal of 213552200000 is 2255312.

213552200000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 197975163136 + 15577036864 = 444944^2 + 124808^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213552200009) 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, 333881 + ... + 733880.

It is an arithmetic number, because the mean of its divisors is an integer number (6305668491).

Almost surely, 2213552200000 is an apocalyptic number.

213552200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213552200000 is an abundant number, since it is smaller than the sum of its proper divisors (316123953244).

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

213552200000 is an frugal number, since it uses more digits than its factorization.

213552200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067798 (or 1067768 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 213552200000 its reverse (2255312), we get a palindrome (213554455312).

The spelling of 213552200000 in words is "two hundred thirteen billion, five hundred fifty-two million, two hundred thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 160 200 250 320 400 500 625 800 1000 1250 1600 2000 2500 3125 4000 5000 6250 8000 10000 12500 20000 25000 40000 50000 100000 200000 1067761 2135522 4271044 5338805 8542088 10677610 17084176 21355220 26694025 34168352 42710440 53388050 68336704 85420880 106776100 133470125 170841760 213552200 266940250 341683520 427104400 533880500 667350625 854208800 1067761000 1334701250 1708417600 2135522000 2669402500 3336753125 4271044000 5338805000 6673506250 8542088000 10677610000 13347012500 21355220000 26694025000 42710440000 53388050000 106776100000 213552200000