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213223323330 = 23252778552881
BaseRepresentation
bin1100011010010100011…
…0011011011011000010
3202101100220022002222100
43012211012123123002
511443140132321310
6241541535451230
721255605226033
oct3064506333302
9671326262870
10213223323330
1182478009796
12353a8086b16
1317150a53154
14a46a380a8a
15582e2daec0
hex31a519b6c2

213223323330 has 48 divisors (see below), whose sum is σ = 556382079864. Its totient is φ = 56654277120.

The previous prime is 213223323323. The next prime is 213223323331. The reversal of 213223323330 is 33323322312.

213223323330 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 2 + 3 + 323 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 66717340209 + 146505983121 = 258297^2 + 382761^2 .

It is a super-2 number, since 2×2132233233302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213223323294 and 213223323303.

It is not an unprimeable number, because it can be changed into a prime (213223323331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4251511 + ... + 4301370.

Almost surely, 2213223323330 is an apocalyptic number.

213223323330 is an abundant number, since it is smaller than the sum of its proper divisors (343158756534).

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

213223323330 is a wasteful number, since it uses less digits than its factorization.

213223323330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553171 (or 8553168 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 27.

Adding to 213223323330 its reverse (33323322312), we get a palindrome (246546645642).

The spelling of 213223323330 in words is "two hundred thirteen billion, two hundred twenty-three million, three hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 277 554 831 1385 1662 2493 2770 4155 4986 8310 12465 24930 8552881 17105762 25658643 42764405 51317286 76975929 85528810 128293215 153951858 256586430 384879645 769759290 2369148037 4738296074 7107444111 11845740185 14214888222 21322332333 23691480370 35537220555 42644664666 71074441110 106611661665 213223323330