Base | Representation |
---|---|
bin | 10111101101100110… |
… | …10110010011101111 |
3 | 1012212012212000000220 |
4 | 23312303112103233 |
5 | 202033012343242 |
6 | 5503124422423 |
7 | 630322143021 |
oct | 136663262357 |
9 | 35765760026 |
10 | 12730590447 |
11 | 54430a5033 |
12 | 2573547a13 |
13 | 127b624873 |
14 | 88aa7a011 |
15 | 4e7986bec |
hex | 2f6cd64ef |
12730590447 has 8 divisors (see below), whose sum is σ = 16977767040. Its totient is φ = 8485237080.
The previous prime is 12730590427. The next prime is 12730590493. The reversal of 12730590447 is 74409503721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12730590447 - 210 = 12730589423 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12730590399 and 12730590408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12730590427) 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, 439429 + ... + 467502.
It is an arithmetic number, because the mean of its divisors is an integer number (2122220880).
Almost surely, 212730590447 is an apocalyptic number.
12730590447 is a deficient number, since it is larger than the sum of its proper divisors (4247176593).
12730590447 is an equidigital number, since it uses as much as digits as its factorization.
12730590447 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 911613.
The product of its (nonzero) digits is 211680, while the sum is 42.
The spelling of 12730590447 in words is "twelve billion, seven hundred thirty million, five hundred ninety thousand, four hundred forty-seven".
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