Base | Representation |
---|---|
bin | 111101011011101… |
… | …011100010100101 |
3 | 2122211101021111211 |
4 | 331123223202211 |
5 | 4102322311110 |
6 | 250134431421 |
7 | 34353343216 |
oct | 7533534245 |
9 | 2584337454 |
10 | 1030666405 |
11 | 489869a1a |
12 | 249202571 |
13 | 1356b65a2 |
14 | 9ac5140d |
15 | 6073c98a |
hex | 3d6eb8a5 |
1030666405 has 16 divisors (see below), whose sum is σ = 1270370304. Its totient is φ = 802261120.
The previous prime is 1030666391. The next prime is 1030666411. The reversal of 1030666405 is 5046660301.
It is not a de Polignac number, because 1030666405 - 27 = 1030666277 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71952 + ... + 85078.
It is an arithmetic number, because the mean of its divisors is an integer number (79398144).
Almost surely, 21030666405 is an apocalyptic number.
It is an amenable number.
1030666405 is a deficient number, since it is larger than the sum of its proper divisors (239703899).
1030666405 is a wasteful number, since it uses less digits than its factorization.
1030666405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13556.
The product of its (nonzero) digits is 12960, while the sum is 31.
The square root of 1030666405 is about 32103.9935989278. The cubic root of 1030666405 is about 1010.1193875798.
The spelling of 1030666405 in words is "one billion, thirty million, six hundred sixty-six thousand, four hundred five".
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