Base | Representation |
---|---|
bin | 110101111100010… |
… | …011010011000011 |
3 | 2100001220202210101 |
4 | 311330103103003 |
5 | 3323140001011 |
6 | 225445143231 |
7 | 31266242230 |
oct | 6574232303 |
9 | 2301822711 |
10 | 905000131 |
11 | 424937aa2 |
12 | 2130bab17 |
13 | 115657549 |
14 | 8829c787 |
15 | 546b82c1 |
hex | 35f134c3 |
905000131 has 8 divisors (see below), whose sum is σ = 1062239840. Its totient is φ = 754748928.
The previous prime is 905000111. The next prime is 905000137. The reversal of 905000131 is 131000509.
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 905000131 - 25 = 905000099 is a prime.
It is a super-2 number, since 2×9050001312 = 1638050474220034322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 905000099 and 905000108.
It is not an unprimeable number, because it can be changed into a prime (905000137) 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, 1746846 + ... + 1747363.
It is an arithmetic number, because the mean of its divisors is an integer number (132779980).
Almost surely, 2905000131 is an apocalyptic number.
905000131 is a deficient number, since it is larger than the sum of its proper divisors (157239709).
905000131 is a wasteful number, since it uses less digits than its factorization.
905000131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3494253.
The product of its (nonzero) digits is 135, while the sum is 19.
The square root of 905000131 is about 30083.2200902762. The cubic root of 905000131 is about 967.2740737572.
The spelling of 905000131 in words is "nine hundred five million, one hundred thirty-one", and thus it is an aban number.
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