Base | Representation |
---|---|
bin | 10010110011010… |
… | …001011001011001 |
3 | 210222112112021201 |
4 | 102303101121121 |
5 | 1121222233424 |
6 | 51144434201 |
7 | 10550054263 |
oct | 2263213131 |
9 | 728475251 |
10 | 315430489 |
11 | 152063660 |
12 | 89778961 |
13 | 5047137a |
14 | 2dc6cb33 |
15 | 1ca5ad44 |
hex | 12cd1659 |
315430489 has 16 divisors (see below), whose sum is σ = 355921920. Its totient is φ = 277065360.
The previous prime is 315430469. The next prime is 315430519. The reversal of 315430489 is 984034513.
It is not a de Polignac number, because 315430489 - 217 = 315299417 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (315430429) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36982 + ... + 44704.
It is an arithmetic number, because the mean of its divisors is an integer number (22245120).
Almost surely, 2315430489 is an apocalyptic number.
It is an amenable number.
315430489 is a deficient number, since it is larger than the sum of its proper divisors (40491431).
315430489 is a wasteful number, since it uses less digits than its factorization.
315430489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7860.
The product of its (nonzero) digits is 51840, while the sum is 37.
The square root of 315430489 is about 17760.3628622841. The cubic root of 315430489 is about 680.7190267800.
The spelling of 315430489 in words is "three hundred fifteen million, four hundred thirty thousand, four hundred eighty-nine".
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