Base | Representation |
---|---|
bin | 10010010101000000011000… |
… | …100000010111101001011101 |
3 | 101120102002021000112110000222 |
4 | 102111000120200113221131 |
5 | 41031141403440144411 |
6 | 443234545041531125 |
7 | 22656522145224236 |
oct | 2225003040275135 |
9 | 346362230473028 |
10 | 80608357349981 |
11 | 237588a32a544a |
12 | 905a533943aa5 |
13 | 35c9449090316 |
14 | 15c9672b6408d |
15 | 94bc1d33d4db |
hex | 495018817a5d |
80608357349981 has 16 divisors (see below), whose sum is σ = 82624131596160. Its totient is φ = 78594958414080.
The previous prime is 80608357349911. The next prime is 80608357350119. The reversal of 80608357349981 is 18994375380608.
It is a cyclic number.
It is not a de Polignac number, because 80608357349981 - 230 = 80607283608157 is a prime.
It is a super-2 number, since 2×806083573499812 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80608357349911) 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 15 ways as a sum of consecutive naturals, for example, 956018681 + ... + 956102993.
It is an arithmetic number, because the mean of its divisors is an integer number (5164008224760).
Almost surely, 280608357349981 is an apocalyptic number.
It is an amenable number.
80608357349981 is a deficient number, since it is larger than the sum of its proper divisors (2015774246179).
80608357349981 is a wasteful number, since it uses less digits than its factorization.
80608357349981 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98116.
The product of its (nonzero) digits is 313528320, while the sum is 71.
The spelling of 80608357349981 in words is "eighty trillion, six hundred eight billion, three hundred fifty-seven million, three hundred forty-nine thousand, nine hundred eighty-one".
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