Base | Representation |
---|---|
bin | 10111110110011110… |
… | …01110011111100010 |
3 | 1020001101212202210202 |
4 | 23323033032133202 |
5 | 202211040213310 |
6 | 5514343425202 |
7 | 632214523613 |
oct | 137317163742 |
9 | 36041782722 |
10 | 12805007330 |
11 | 5481102595 |
12 | 2594455202 |
13 | 1290b7b91b |
14 | 8968cbc0a |
15 | 4ee2863a5 |
hex | 2fb3ce7e2 |
12805007330 has 8 divisors (see below), whose sum is σ = 23049013212. Its totient is φ = 5122002928.
The previous prime is 12805007287. The next prime is 12805007353. The reversal of 12805007330 is 3370050821.
It can be written as a sum of positive squares in 2 ways, for example, as 11940588529 + 864418801 = 109273^2 + 29401^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a junction number, because it is equal to n+sod(n) for n = 12805007293 and 12805007302.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640250357 + ... + 640250376.
Almost surely, 212805007330 is an apocalyptic number.
12805007330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12805007330 is a deficient number, since it is larger than the sum of its proper divisors (10244005882).
12805007330 is a wasteful number, since it uses less digits than its factorization.
12805007330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1280500740.
The product of its (nonzero) digits is 5040, while the sum is 29.
The spelling of 12805007330 in words is "twelve billion, eight hundred five million, seven thousand, three hundred thirty".
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