Base | Representation |
---|---|
bin | 100100101101010101… |
… | …1101111000111011011 |
3 | 21112110212002212201021 |
4 | 1021122223233013123 |
5 | 2242421142412242 |
6 | 100114150103311 |
7 | 5460333651616 |
oct | 1113253570733 |
9 | 245425085637 |
10 | 78830825947 |
11 | 30482a45335 |
12 | 1334034ab37 |
13 | 7583b44553 |
14 | 3b5b79117d |
15 | 20b5a21b67 |
hex | 125aaef1db |
78830825947 has 8 divisors (see below), whose sum is σ = 81908384400. Its totient is φ = 75777217824.
The previous prime is 78830825923. The next prime is 78830825951. The reversal of 78830825947 is 74952803887.
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 78830825947 - 215 = 78830793179 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (78830865947) 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, 5980872 + ... + 5994037.
It is an arithmetic number, because the mean of its divisors is an integer number (10238548050).
Almost surely, 278830825947 is an apocalyptic number.
78830825947 is a deficient number, since it is larger than the sum of its proper divisors (3077558453).
78830825947 is a wasteful number, since it uses less digits than its factorization.
78830825947 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11975165.
The product of its (nonzero) digits is 27095040, while the sum is 61.
The spelling of 78830825947 in words is "seventy-eight billion, eight hundred thirty million, eight hundred twenty-five thousand, nine hundred forty-seven".
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