Search a number
-
+
30000020232020 = 225231071975036151
BaseRepresentation
bin1101101001000111011001…
…00011001001011101010100
310221012222021222202122121012
412310203230203021131110
512413010020134411040
6143445452524511352
76214300316352536
oct664435443113524
9127188258678535
1030000020232020
119616a3435a733
1234462560ab558
131397cb36a4167
1475a019d35856
15370581973865
hex1b48ec8c9754

30000020232020 has 192 divisors, whose sum is σ = 66833828683776. Its totient is φ = 11288947084800.

The previous prime is 30000020232019. The next prime is 30000020232029. The reversal of 30000020232020 is 2023202000003.

It is a junction number, because it is equal to n+sod(n) for n = 30000020231986 and 30000020232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000020232029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4877255945 + ... + 4877262095.

It is an arithmetic number, because the mean of its divisors is an integer number (348092857728).

Almost surely, 230000020232020 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 30000020232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33416914341888).

30000020232020 is an abundant number, since it is smaller than the sum of its proper divisors (36833808451756).

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

30000020232020 is a wasteful number, since it uses less digits than its factorization.

30000020232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6990 (or 6988 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 30000020232020 its reverse (2023202000003), we get a palindrome (32023222232023).

The spelling of 30000020232020 in words is "thirty trillion, twenty million, two hundred thirty-two thousand, twenty".