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30551624233013 = 132981038791069
BaseRepresentation
bin1101111001001010110101…
…01101011011000000110101
311000011201002020000020011202
412330211122231123000311
513001024211300424023
6144551120012542245
76302165505120542
oct674453255330065
9130151066006152
1030551624233013
119809964444934
123515139181985
13140800c998860
147789c6901bc9
1537eab7b8b128
hex1bc95ab5b035

30551624233013 has 8 divisors (see below), whose sum is σ = 34036292249400. Its totient is φ = 27229033798848.

The previous prime is 30551624232967. The next prime is 30551624233021. The reversal of 30551624233013 is 31033242615503.

It can be written as a sum of positive squares in 4 ways, for example, as 315240700369 + 30236383532644 = 561463^2 + 5498762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30551624233013 - 218 = 30551623970869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30551624233093) 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, 40519395158 + ... + 40519395911.

It is an arithmetic number, because the mean of its divisors is an integer number (4254536531175).

Almost surely, 230551624233013 is an apocalyptic number.

It is an amenable number.

30551624233013 is a deficient number, since it is larger than the sum of its proper divisors (3484668016387).

30551624233013 is a wasteful number, since it uses less digits than its factorization.

30551624233013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81038791111.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 30551624233013 its reverse (31033242615503), we get a palindrome (61584866848516).

The spelling of 30551624233013 in words is "thirty trillion, five hundred fifty-one billion, six hundred twenty-four million, two hundred thirty-three thousand, thirteen".

Divisors: 1 13 29 377 81038791069 1053504283897 2350124941001 30551624233013