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213342243312 = 243113785912713
BaseRepresentation
bin1100011010110000110…
…0000100100111110000
3202101200012001212112010
43012230030010213300
511443411103241222
6242001424402520
721261551101362
oct3065414044760
9671605055463
10213342243312
1182529153070
123541ba76440
131716c58c5c3
14a47c098d32
15583997b80c
hex31ac3049f0

213342243312 has 160 divisors (see below), whose sum is σ = 618254357760. Its totient is φ = 62823720960.

The previous prime is 213342243293. The next prime is 213342243313.

It is a happy number.

213342243312 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 213342243312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213342243313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16775068 + ... + 16787780.

It is an arithmetic number, because the mean of its divisors is an integer number (3864089736).

Almost surely, 2213342243312 is an apocalyptic number.

213342243312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213342243312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309127178880).

213342243312 is an abundant number, since it is smaller than the sum of its proper divisors (404912114448).

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

213342243312 is a wasteful number, since it uses less digits than its factorization.

213342243312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13631 (or 13625 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

It can be divided in two parts, 213342 and 243312, that added together give a palindrome (456654).

The spelling of 213342243312 in words is "two hundred thirteen billion, three hundred forty-two million, two hundred forty-three thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 37 44 48 66 74 88 111 132 148 176 222 264 296 407 444 528 592 814 859 888 1221 1628 1718 1776 2442 2577 3256 3436 4884 5154 6512 6872 9449 9768 10308 12713 13744 18898 19536 20616 25426 28347 31783 37796 38139 41232 50852 56694 63566 75592 76278 95349 101704 113388 127132 139843 151184 152556 190698 203408 226776 254264 279686 305112 349613 381396 419529 453552 470381 508528 559372 610224 699226 762792 839058 940762 1048839 1118744 1398452 1411143 1525584 1678116 1881524 2097678 2237488 2796904 2822286 3356232 3763048 4195356 5174191 5593808 5644572 6712464 7526096 8390712 10348382 10920467 11289144 15522573 16781424 20696764 21840934 22578288 31045146 32761401 41393528 43681868 62090292 65522802 82787056 87363736 120125137 124180584 131045604 174727472 240250274 248361168 262091208 360375411 404057279 480500548 524182416 720750822 808114558 961001096 1212171837 1441501644 1616229116 1922002192 2424343674 2883003288 3232458232 4444630069 4848687348 5766006576 6464916464 8889260138 9697374696 13333890207 17778520276 19394749392 26667780414 35557040552 53335560828 71114081104 106671121656 213342243312