Base | Representation |
---|---|
bin | 11011111100001100… |
… | …110011110001101101 |
3 | 2212102211012201120101 |
4 | 123330030303301231 |
5 | 442420230120023 |
6 | 21440545551101 |
7 | 2111311314436 |
oct | 337414636155 |
9 | 85384181511 |
10 | 30001020013 |
11 | 117a5880418 |
12 | 5993345491 |
13 | 2aa1661463 |
14 | 164863248d |
15 | ba8c7b1ad |
hex | 6fc333c6d |
30001020013 has 4 divisors (see below), whose sum is σ = 30380779840. Its totient is φ = 29621260188.
The previous prime is 30001020001. The next prime is 30001020031. The reversal of 30001020013 is 31002010003.
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, and also an emirpimes, since its reverse is a distinct semiprime: 31002010003 = 19 ⋅1631684737.
It is a cyclic number.
It is not a de Polignac number, because 30001020013 - 229 = 29464149101 is a prime.
It is a super-2 number, since 2×300010200132 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30001020043) 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, 189879795 + ... + 189879952.
It is an arithmetic number, because the mean of its divisors is an integer number (7595194960).
Almost surely, 230001020013 is an apocalyptic number.
It is an amenable number.
30001020013 is a deficient number, since it is larger than the sum of its proper divisors (379759827).
30001020013 is an equidigital number, since it uses as much as digits as its factorization.
30001020013 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 379759826.
The product of its (nonzero) digits is 18, while the sum is 10.
Adding to 30001020013 its reverse (31002010003), we get a palindrome (61003030016).
It can be divided in two parts, 300010 and 20013, that added together give a palindrome (320023).
The spelling of 30001020013 in words is "thirty billion, one million, twenty thousand, thirteen".
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