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30011031000013 = 74287290142859
BaseRepresentation
bin1101101001011011111001…
…10101111001001111001101
310221021000201100110121202011
412310231330311321033031
512413200042414000023
6143454513255501221
76215140216344130
oct664557465711715
9127230640417664
1030011031000013
119620674682698
123448409687811
1313990498cbaab
1475a78240a217
153709c843d50d
hex1b4b7cd793cd

30011031000013 has 4 divisors (see below), whose sum is σ = 34298321142880. Its totient is φ = 25723740857148.

The previous prime is 30011030999981. The next prime is 30011031000047. The reversal of 30011031000013 is 31000013011003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30011031000013 - 25 = 30011030999981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30011030999957 and 30011031000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30011031000413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143645071423 + ... + 2143645071436.

It is an arithmetic number, because the mean of its divisors is an integer number (8574580285720).

Almost surely, 230011031000013 is an apocalyptic number.

It is an amenable number.

30011031000013 is a deficient number, since it is larger than the sum of its proper divisors (4287290142867).

30011031000013 is an equidigital number, since it uses as much as digits as its factorization.

30011031000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4287290142866.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 30011031000013 its reverse (31000013011003), we get a palindrome (61011044011016).

The spelling of 30011031000013 in words is "thirty trillion, eleven billion, thirty-one million, thirteen", and thus it is an aban number and an uban number.

Divisors: 1 7 4287290142859 30011031000013