Base | Representation |
---|---|
bin | 100000001010000100… |
… | …1011010001110010001 |
3 | 20121020201211212010220 |
4 | 1000110021122032101 |
5 | 2112412204102021 |
6 | 51420301343253 |
7 | 4663210650363 |
oct | 1002411321621 |
9 | 217221755126 |
10 | 69057487761 |
11 | 27318173739 |
12 | 11473267b29 |
13 | 66870b7ac2 |
14 | 34b1790d33 |
15 | 1be29d7cc6 |
hex | 101425a391 |
69057487761 has 8 divisors (see below), whose sum is σ = 96922789920. Its totient is φ = 43615255392.
The previous prime is 69057487727. The next prime is 69057487777. The reversal of 69057487761 is 16778475096.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 69057487761 - 211 = 69057485713 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 69057487695 and 69057487704.
It is not an unprimeable number, because it can be changed into a prime (69057487721) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605767380 + ... + 605767493.
It is an arithmetic number, because the mean of its divisors is an integer number (12115348740).
Almost surely, 269057487761 is an apocalyptic number.
It is an amenable number.
69057487761 is a deficient number, since it is larger than the sum of its proper divisors (27865302159).
69057487761 is a wasteful number, since it uses less digits than its factorization.
69057487761 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1211534895.
The product of its (nonzero) digits is 17781120, while the sum is 60.
The spelling of 69057487761 in words is "sixty-nine billion, fifty-seven million, four hundred eighty-seven thousand, seven hundred sixty-one".
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