Base | Representation |
---|---|
bin | 11100101101101001… |
… | …101100011011011111 |
3 | 2221120122100121012000 |
4 | 130231221230123133 |
5 | 1001120123110204 |
6 | 22055144213343 |
7 | 2141004263556 |
oct | 345551543337 |
9 | 87518317160 |
10 | 30830675679 |
11 | 12091126a61 |
12 | 5b8516a253 |
13 | 2ba44c867b |
14 | 16c68bad9d |
15 | c06a10039 |
hex | 72da6c6df |
30830675679 has 32 divisors (see below), whose sum is σ = 48737702400. Its totient is φ = 19205242560.
The previous prime is 30830675653. The next prime is 30830675683. The reversal of 30830675679 is 97657603803.
It is not a de Polignac number, because 30830675679 - 25 = 30830675647 is a prime.
It is a super-2 number, since 2×308306756792 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30830675279) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 374187 + ... + 449084.
It is an arithmetic number, because the mean of its divisors is an integer number (1523053200).
Almost surely, 230830675679 is an apocalyptic number.
30830675679 is a deficient number, since it is larger than the sum of its proper divisors (17907026721).
30830675679 is a wasteful number, since it uses less digits than its factorization.
30830675679 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 823372 (or 823366 counting only the distinct ones).
The product of its (nonzero) digits is 5715360, while the sum is 54.
The spelling of 30830675679 in words is "thirty billion, eight hundred thirty million, six hundred seventy-five thousand, six hundred seventy-nine".
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