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213244041012 = 22323248896871
BaseRepresentation
bin1100011010011001010…
…1011101011100110100
3202101102100021200021220
43012212111131130310
511443210433303022
6241543555510340
721256246304322
oct3064625353464
9671370250256
10213244041012
118248877a242
12353b2bb83b0
1317155128132
14a46d014d12
15583102e85c
hex31a655d734

213244041012 has 72 divisors (see below), whose sum is σ = 520325574720. Its totient is φ = 67967053440.

The previous prime is 213244041007. The next prime is 213244041019. The reversal of 213244041012 is 210140442312.

It is a super-3 number, since 3×2132440410123 (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213244041019) 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, 31031937 + ... + 31038807.

Almost surely, 2213244041012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213244041012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260162787360).

213244041012 is an abundant number, since it is smaller than the sum of its proper divisors (307081533708).

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

213244041012 is a wasteful number, since it uses less digits than its factorization.

213244041012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11813 (or 11788 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 213244041012 its reverse (210140442312), we get a palindrome (423384483324).

The spelling of 213244041012 in words is "two hundred thirteen billion, two hundred forty-four million, forty-one thousand, twelve".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 529 1058 1587 2116 3174 4889 6348 6871 9778 13742 14667 19556 20613 27484 29334 41226 58668 82452 112447 158033 224894 316066 337341 449788 474099 632132 674682 948198 1349364 1896396 2586281 3634759 5172562 7269518 7758843 10345124 10904277 14539036 15517686 21808554 31035372 33592319 43617108 67184638 100776957 134369276 201553914 403107828 772623337 1545246674 2317870011 3090493348 4635740022 9271480044 17770336751 35540673502 53311010253 71081347004 106622020506 213244041012