Base | Representation |
---|---|
bin | 11100011001010000… |
… | …111011100110011111 |
3 | 2220200210202101022022 |
4 | 130121100323212133 |
5 | 444420042434103 |
6 | 22001205210355 |
7 | 2126352106661 |
oct | 343120734637 |
9 | 86623671268 |
10 | 30488639903 |
11 | 11a26051467 |
12 | 5aaa7009bb |
13 | 2b4b6a0537 |
14 | 16932c4531 |
15 | bd699b138 |
hex | 71943b99f |
30488639903 has 8 divisors (see below), whose sum is σ = 31610795520. Its totient is φ = 29375150040.
The previous prime is 30488639789. The next prime is 30488639911. The reversal of 30488639903 is 30993688403.
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 30488639903 - 214 = 30488623519 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 (30488630903) 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, 2159273 + ... + 2173346.
It is an arithmetic number, because the mean of its divisors is an integer number (3951349440).
Almost surely, 230488639903 is an apocalyptic number.
30488639903 is a deficient number, since it is larger than the sum of its proper divisors (1122155617).
30488639903 is a wasteful number, since it uses less digits than its factorization.
30488639903 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4332877.
The product of its (nonzero) digits is 3359232, while the sum is 53.
The spelling of 30488639903 in words is "thirty billion, four hundred eighty-eight million, six hundred thirty-nine thousand, nine hundred three".
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