Search a number
-
+
30123131300232 = 2336431951991401
BaseRepresentation
bin1101101100101100101101…
…00010100110100110001000
310221122202001210221220101020
412312112112202212212020
512422014133103101412
6144022213034152440
76226216163231625
oct666262642464610
9127582053856336
1030123131300232
11966416a346403
123466093882720
1313a67a3290399
14761d7851734c
15373889b0c18c
hex1b65968a6988

30123131300232 has 32 divisors (see below), whose sum is σ = 75424947773280. Its totient is φ = 10025427830400.

The previous prime is 30123131300231. The next prime is 30123131300257. The reversal of 30123131300232 is 23200313132103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30123131300231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975980269 + ... + 976011132.

It is an arithmetic number, because the mean of its divisors is an integer number (2357029617915).

Almost surely, 230123131300232 is an apocalyptic number.

It is an amenable number.

30123131300232 is an abundant number, since it is smaller than the sum of its proper divisors (45301816473048).

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

30123131300232 is a wasteful number, since it uses less digits than its factorization.

30123131300232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951992053 (or 1951992049 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 30123131300232 its reverse (23200313132103), we get a palindrome (53323444432335).

The spelling of 30123131300232 in words is "thirty trillion, one hundred twenty-three billion, one hundred thirty-one million, three hundred thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 643 1286 1929 2572 3858 5144 7716 15432 1951991401 3903982802 5855974203 7807965604 11711948406 15615931208 23423896812 46847793624 1255130470843 2510260941686 3765391412529 5020521883372 7530782825058 10041043766744 15061565650116 30123131300232