Base | Representation |
---|---|
bin | 110000000111100… |
… | …011010010111001 |
3 | 2002021001101010110 |
4 | 300013203102321 |
5 | 3123131122240 |
6 | 212034534533 |
7 | 26001550224 |
oct | 6007432271 |
9 | 2067041113 |
10 | 807285945 |
11 | 384767974 |
12 | 1a6437449 |
13 | cb3342bb |
14 | 793045bb |
15 | 4ad15c80 |
hex | 301e34b9 |
807285945 has 16 divisors (see below), whose sum is σ = 1292163840. Its totient is φ = 430383744.
The previous prime is 807285931. The next prime is 807285961. The reversal of 807285945 is 549582708.
It is not a de Polignac number, because 807285945 - 24 = 807285929 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 807285894 and 807285903.
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, 35472 + ... + 53598.
It is an arithmetic number, because the mean of its divisors is an integer number (80760240).
Almost surely, 2807285945 is an apocalyptic number.
It is an amenable number.
807285945 is a deficient number, since it is larger than the sum of its proper divisors (484877895).
807285945 is a wasteful number, since it uses less digits than its factorization.
807285945 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21104.
The product of its (nonzero) digits is 806400, while the sum is 48.
The square root of 807285945 is about 28412.7778472996. Note that the first 3 decimals coincide. The cubic root of 807285945 is about 931.1274509848.
The spelling of 807285945 in words is "eight hundred seven million, two hundred eighty-five thousand, nine hundred forty-five".
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