Base | Representation |
---|---|
bin | 10010010111001001110000… |
… | …010010000110011111001001 |
3 | 101120221011222122201011220100 |
4 | 102113021300102012133021 |
5 | 41041100444334031440 |
6 | 443430421315520013 |
7 | 23003263315523511 |
oct | 2227116022063711 |
9 | 346834878634810 |
10 | 80755858892745 |
11 | 23805405053703 |
12 | 90830398b9009 |
13 | 360a324b305ca |
14 | 15d2866786841 |
15 | 9509a28e9230 |
hex | 4972704867c9 |
80755858892745 has 192 divisors, whose sum is σ = 152679537541440. Its totient is φ = 39387053260800.
The previous prime is 80755858892743. The next prime is 80755858892749. The reversal of 80755858892745 is 54729885855708.
80755858892745 is a `hidden beast` number, since 8 + 0 + 7 + 5 + 5 + 8 + 588 + 9 + 27 + 4 + 5 = 666.
It can be written as a sum of positive squares in 32 ways, for example, as 37654165417401 + 43101693475344 = 6136299^2 + 6565188^2 .
It is not a de Polignac number, because 80755858892745 - 21 = 80755858892743 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (80755858892743) by changing a digit.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 904671415 + ... + 904760675.
It is an arithmetic number, because the mean of its divisors is an integer number (795205924695).
Almost surely, 280755858892745 is an apocalyptic number.
It is an amenable number.
80755858892745 is a deficient number, since it is larger than the sum of its proper divisors (71923678648695).
80755858892745 is a wasteful number, since it uses less digits than its factorization.
80755858892745 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 89836 (or 89833 counting only the distinct ones).
The product of its (nonzero) digits is 9031680000, while the sum is 81.
The spelling of 80755858892745 in words is "eighty trillion, seven hundred fifty-five billion, eight hundred fifty-eight million, eight hundred ninety-two thousand, seven hundred forty-five".
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