Search a number
-
+
243321031030 = 257111623119469
BaseRepresentation
bin1110001010011100010…
…0000100100101110110
3212021001110110002010011
43202213010010211312
512441310140443110
6303440302050434
723402502432010
oct3424704044566
9767043402104
10243321031030
1194212418a90
123b1a7879a1a
1319c3943854c
14bac37811b0
1564e17b548a
hex38a7104976

243321031030 has 64 divisors (see below), whose sum is σ = 546112005120. Its totient is φ = 75831753600.

The previous prime is 243321030973. The next prime is 243321031039. The reversal of 243321031030 is 30130123342.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 243321030992 and 243321031010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243321031039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12488136 + ... + 12507604.

It is an arithmetic number, because the mean of its divisors is an integer number (8533000080).

Almost surely, 2243321031030 is an apocalyptic number.

243321031030 is an abundant number, since it is smaller than the sum of its proper divisors (302790974090).

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

243321031030 is a wasteful number, since it uses less digits than its factorization.

243321031030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35725.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 243321031030 its reverse (30130123342), we get a palindrome (273451154372).

The spelling of 243321031030 in words is "two hundred forty-three billion, three hundred twenty-one million, thirty-one thousand, thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 16231 19469 32462 38938 81155 97345 113617 136283 162310 178541 194690 214159 227234 272566 357082 428318 568085 681415 892705 1070795 1136170 1249787 1362830 1499113 1785410 2141590 2499574 2998226 6248935 7495565 12497870 14991130 316001339 632002678 1580006695 2212009373 3160013390 3476014729 4424018746 6952029458 11060046865 17380073645 22120093730 24332103103 34760147290 48664206206 121660515515 243321031030