Search a number
-
+
30443040220 = 22547131247223
BaseRepresentation
bin11100010110100010…
…111110110111011100
32220120121221200022011
4130112202332313130
5444321404241340
621552500001004
72125256400205
oct342642766734
986517850264
1030443040220
1111a0233677a
125a97390164
132b420c5c88
14168b2145ac
15bd29900ea
hex7168beddc

30443040220 has 48 divisors (see below), whose sum is σ = 65789273088. Its totient is φ = 11827100480.

The previous prime is 30443040169. The next prime is 30443040239. The reversal of 30443040220 is 2204034403.

It is a junction number, because it is equal to n+sod(n) for n = 30443040191 and 30443040200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472 + ... + 246751.

It is an arithmetic number, because the mean of its divisors is an integer number (1370609856).

Almost surely, 230443040220 is an apocalyptic number.

It is an amenable number.

30443040220 is an abundant number, since it is smaller than the sum of its proper divisors (35346232868).

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

30443040220 is a wasteful number, since it uses less digits than its factorization.

30443040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247410 (or 247408 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 30443040220 its reverse (2204034403), we get a palindrome (32647074623).

The spelling of 30443040220 in words is "thirty billion, four hundred forty-three million, forty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 47 94 131 188 235 262 470 524 655 940 1310 2620 6157 12314 24628 30785 61570 123140 247223 494446 988892 1236115 2472230 4944460 11619481 23238962 32386213 46477924 58097405 64772426 116194810 129544852 161931065 232389620 323862130 647724260 1522152011 3044304022 6088608044 7610760055 15221520110 30443040220