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213320003320 = 23511368236917
BaseRepresentation
bin1100011010101011011…
…1001110111011111000
3202101121122012221222201
43012222313032323320
511443334410101240
6241555311555544
721261161052634
oct3065267167370
9671548187881
10213320003320
1182517642906
123541452bbb4
1317167aa3748
14a479149dc4
155837a36d9a
hex31aadceef8

213320003320 has 64 divisors (see below), whose sum is σ = 484358512320. Its totient is φ = 84548265984.

The previous prime is 213320003261. The next prime is 213320003339. The reversal of 213320003320 is 23300023312.

It is a happy number.

It is a super-2 number, since 2×2133200033202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30836502 + ... + 30843418.

It is an arithmetic number, because the mean of its divisors is an integer number (7568101755).

Almost surely, 2213320003320 is an apocalyptic number.

213320003320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213320003320 is an abundant number, since it is smaller than the sum of its proper divisors (271038509000).

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

213320003320 is a wasteful number, since it uses less digits than its factorization.

213320003320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13864 (or 13860 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 213320003320 its reverse (23300023312), we get a palindrome (236620026632).

The spelling of 213320003320 in words is "two hundred thirteen billion, three hundred twenty million, three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 113 226 452 565 904 1130 2260 4520 6823 6917 13646 13834 27292 27668 34115 34585 54584 55336 68230 69170 136460 138340 272920 276680 770999 781621 1541998 1563242 3083996 3126484 3854995 3908105 6167992 6252968 7709990 7816210 15419980 15632420 30839960 31264840 47194691 94389382 188778764 235973455 377557528 471946910 943893820 1887787640 5333000083 10666000166 21332000332 26665000415 42664000664 53330000830 106660001660 213320003320