Base | Representation |
---|---|
bin | 111011100111000101… |
… | …1101010101000000010 |
3 | 110020102110110011200210 |
4 | 1313032023222220002 |
5 | 4044132340410013 |
6 | 134450343254550 |
7 | 12151200245634 |
oct | 1671613525002 |
9 | 406373404623 |
10 | 128013216258 |
11 | 4a32113a0a4 |
12 | 2098744a456 |
13 | c0c13a6c55 |
14 | 62a5690a54 |
15 | 34e3711cc3 |
hex | 1dce2eaa02 |
128013216258 has 32 divisors (see below), whose sum is σ = 256344652800. Its totient is φ = 42618073680.
The previous prime is 128013216257. The next prime is 128013216301. The reversal of 128013216258 is 852612310821.
It is not an unprimeable number, because it can be changed into a prime (128013216257) 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, 23707843 + ... + 23713241.
It is an arithmetic number, because the mean of its divisors is an integer number (8010770400).
Almost surely, 2128013216258 is an apocalyptic number.
128013216258 is an abundant number, since it is smaller than the sum of its proper divisors (128331436542).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
128013216258 is a wasteful number, since it uses less digits than its factorization.
128013216258 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9582.
The product of its (nonzero) digits is 46080, while the sum is 39.
The spelling of 128013216258 in words is "one hundred twenty-eight billion, thirteen million, two hundred sixteen thousand, two hundred fifty-eight".
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