Search a number
-
+
230444313444 = 22351929430277
BaseRepresentation
bin1101011010011110001…
…1010010101101100100
3211000211001122001100000
43112213203102231210
512233422221012234
6253510433221300
722435424226222
oct3264743225544
9730731561300
10230444313444
1189804897524
12387b3401830
131896676c827
14b221547b12
155edb0b6899
hex35a78d2b64

230444313444 has 144 divisors (see below), whose sum is σ = 657809006400. Its totient is φ = 70262349696.

The previous prime is 230444313401. The next prime is 230444313457. The reversal of 230444313444 is 444313444032.

230444313444 is a `hidden beast` number, since 2 + 304 + 4 + 4 + 3 + 1 + 344 + 4 = 666.

It is a super-2 number, since 2×2304443134442 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 230444313399 and 230444313408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 320434 + ... + 750710.

It is an arithmetic number, because the mean of its divisors is an integer number (4568118100).

Almost surely, 2230444313444 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 230444313444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328904503200).

230444313444 is an abundant number, since it is smaller than the sum of its proper divisors (427364692956).

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

230444313444 is a wasteful number, since it uses less digits than its factorization.

230444313444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430344 (or 430330 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 230444313444 its reverse (444313444032), we get a palindrome (674757757476).

The spelling of 230444313444 in words is "two hundred thirty billion, four hundred forty-four million, three hundred thirteen thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 19 27 29 36 38 54 57 58 76 81 87 108 114 116 162 171 174 228 243 261 324 342 348 486 513 522 551 684 783 972 1026 1044 1102 1539 1566 1653 2052 2204 2349 3078 3132 3306 4617 4698 4959 6156 6612 7047 9234 9396 9918 14094 14877 18468 19836 28188 29754 44631 59508 89262 133893 178524 267786 430277 535572 860554 1290831 1721108 2581662 3872493 5163324 7744986 8175263 11617479 12478033 15489972 16350526 23234958 24525789 24956066 32701052 34852437 37434099 46469916 49051578 49912132 69704874 73577367 74868198 98103156 104557311 112302297 139409748 147154734 149736396 209114622 220732101 224604594 237082627 294309468 336906891 418229244 441464202 449209188 474165254 662196303 673813782 711247881 882928404 948330508 1010720673 1324392606 1347627564 1422495762 1986588909 2021441346 2133743643 2648785212 2844991524 3032162019 3973177818 4042882692 4267487286 6064324038 6401230929 7946355636 8534974572 12128648076 12802461858 19203692787 25604923716 38407385574 57611078361 76814771148 115222156722 230444313444