Base | Representation |
---|---|
bin | 11100010010110010… |
… | …101001101000000111 |
3 | 2220102020101212102011 |
4 | 130102302221220013 |
5 | 444204242214123 |
6 | 21542325355051 |
7 | 2123563032202 |
oct | 342262515007 |
9 | 86366355364 |
10 | 30380038663 |
11 | 1197a815777 |
12 | 5a7a268a87 |
13 | 2b32037a50 |
14 | 1682ad4939 |
15 | bcc197e0d |
hex | 712ca9a07 |
30380038663 has 4 divisors (see below), whose sum is σ = 32716964728. Its totient is φ = 28043112600.
The previous prime is 30380038651. The next prime is 30380038693. The reversal of 30380038663 is 36683008303.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36683008303 = 859 ⋅42704317.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30380038663 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30380038603) 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, 1168463013 + ... + 1168463038.
It is an arithmetic number, because the mean of its divisors is an integer number (8179241182).
Almost surely, 230380038663 is an apocalyptic number.
30380038663 is a deficient number, since it is larger than the sum of its proper divisors (2336926065).
30380038663 is a wasteful number, since it uses less digits than its factorization.
30380038663 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2336926064.
The product of its (nonzero) digits is 186624, while the sum is 40.
The spelling of 30380038663 in words is "thirty billion, three hundred eighty million, thirty-eight thousand, six hundred sixty-three".
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