Base | Representation |
---|---|
bin | 101000111000010111… |
… | …0010010111010110110 |
3 | 22101121021101000101122 |
4 | 1101300232102322312 |
5 | 2414243333431410 |
6 | 104155211423542 |
7 | 6225350123504 |
oct | 1216056227266 |
9 | 271537330348 |
10 | 87790530230 |
11 | 34260513817 |
12 | 15020a54bb2 |
13 | 8381156510 |
14 | 436b6b7674 |
15 | 243c3dde55 |
hex | 1470b92eb6 |
87790530230 has 64 divisors (see below), whose sum is σ = 172478109888. Its totient is φ = 31979888640.
The previous prime is 87790530143. The next prime is 87790530239. The reversal of 87790530230 is 3203509778.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87790530239) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2887910 + ... + 2918150.
It is an arithmetic number, because the mean of its divisors is an integer number (2694970467).
Almost surely, 287790530230 is an apocalyptic number.
87790530230 is a deficient number, since it is larger than the sum of its proper divisors (84687579658).
87790530230 is a wasteful number, since it uses less digits than its factorization.
87790530230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30561.
The product of its (nonzero) digits is 317520, while the sum is 44.
The spelling of 87790530230 in words is "eighty-seven billion, seven hundred ninety million, five hundred thirty thousand, two hundred thirty".
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