Base | Representation |
---|---|
bin | 10111010010000… |
… | …111011011101010 |
3 | 1000020000210202200 |
4 | 113102013123222 |
5 | 1300000000002 |
6 | 102432241030 |
7 | 12452154255 |
oct | 2722073352 |
9 | 1006023680 |
10 | 390625002 |
11 | 190552389 |
12 | aa9a0176 |
13 | 62c0b371 |
14 | 39c4409c |
15 | 24460b1c |
hex | 174876ea |
390625002 has 12 divisors (see below), whose sum is σ = 846354210. Its totient is φ = 130208328.
The previous prime is 390624959. The next prime is 390625003. The reversal of 390625002 is 200526093.
390625002 is a `hidden beast` number, since 39 + 0 + 625 + 0 + 0 + 2 = 666.
It can be written as a sum of positive squares in only one way, i.e., 325838601 + 64786401 = 18051^2 + 8049^2 .
It is not an unprimeable number, because it can be changed into a prime (390625003) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10850677 + ... + 10850712.
Almost surely, 2390625002 is an apocalyptic number.
390625002 is an abundant number, since it is smaller than the sum of its proper divisors (455729208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
390625002 is a wasteful number, since it uses less digits than its factorization.
390625002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21701397 (or 21701394 counting only the distinct ones).
The product of its (nonzero) digits is 3240, while the sum is 27.
The square root of 390625002 is about 19764.2354266488. The cubic root of 390625002 is about 731.0044358008.
The spelling of 390625002 in words is "three hundred ninety million, six hundred twenty-five thousand, two".
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