Base | Representation |
---|---|
bin | 100101010110010111… |
… | …1001010001000101001 |
3 | 21200000210110212102122 |
4 | 1022230233022020221 |
5 | 2303231102023021 |
6 | 100502524041025 |
7 | 5536421054660 |
oct | 1125457121051 |
9 | 250023425378 |
10 | 80207454761 |
11 | 3101a0209a5 |
12 | 13665393175 |
13 | 77430cc305 |
14 | 3c4c53bdd7 |
15 | 21467ebbab |
hex | 12acbca229 |
80207454761 has 16 divisors (see below), whose sum is σ = 93036413568. Its totient is φ = 67723516800.
The previous prime is 80207454749. The next prime is 80207454779. The reversal of 80207454761 is 16745470208.
It is a cyclic number.
It is not a de Polignac number, because 80207454761 - 226 = 80140345897 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80207454661) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317651 + ... + 511191.
It is an arithmetic number, because the mean of its divisors is an integer number (5814775848).
Almost surely, 280207454761 is an apocalyptic number.
It is an amenable number.
80207454761 is a deficient number, since it is larger than the sum of its proper divisors (12828958807).
80207454761 is a wasteful number, since it uses less digits than its factorization.
80207454761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 194432.
The product of its (nonzero) digits is 376320, while the sum is 44.
The spelling of 80207454761 in words is "eighty billion, two hundred seven million, four hundred fifty-four thousand, seven hundred sixty-one".
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