Search a number
-
+
30203231122220 = 22513245274736261
BaseRepresentation
bin1101101111000001111001…
…10111001011001100101100
310221221101211002220110101212
412313200330313023030230
512424322204131402340
6144123101155253552
76235053136414502
oct667407467131454
9127841732813355
1030203231122220
1196951336321a2
123479708baa2b8
1313b11c9ca5960
14765bb6638672
153759c6c47a65
hex1b783cdcb32c

30203231122220 has 48 divisors (see below), whose sum is σ = 68308568189568. Its totient is φ = 11151505224960.

The previous prime is 30203231122193. The next prime is 30203231122241. The reversal of 30203231122220 is 2222113230203.

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, 4008890 + ... + 8745150.

It is an arithmetic number, because the mean of its divisors is an integer number (1423095170616).

Almost surely, 230203231122220 is an apocalyptic number.

It is an amenable number.

30203231122220 is an abundant number, since it is smaller than the sum of its proper divisors (38105337067348).

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

30203231122220 is a wasteful number, since it uses less digits than its factorization.

30203231122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760810 (or 4760808 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30203231122220 its reverse (2222113230203), we get a palindrome (32425344352423).

The spelling of 30203231122220 in words is "thirty trillion, two hundred three billion, two hundred thirty-one million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 24527 49054 98108 122635 245270 318851 490540 637702 1275404 1594255 3188510 4736261 6377020 9472522 18945044 23681305 47362610 61571393 94725220 123142786 246285572 307856965 615713930 1231427860 116166273547 232332547094 464665094188 580831367735 1161662735470 1510161556111 2323325470940 3020323112222 6040646224444 7550807780555 15101615561110 30203231122220